diff --git a/normalize/os.go b/normalize/os.go
index 416419e..c2a4daa 100644
--- a/normalize/os.go
+++ b/normalize/os.go
@@ -1,17 +1,48 @@
 //go:generate ragel -Z -G2 os_fsm.rl
 package normalize
 
-// Os returns either android or ios depending
-// on what can be found in the given string
+// Os returns a normalized OS name (android, ios, tvos, roku, fireos, smartcast, webos, tizen, linux, vidaa, reachtv, or chromeos)
+// based on what can be found in the given string
 func Os(os string) string {
 	if os == "" {
 		return ""
 	}
+	// Check more specific patterns first to avoid false matches
+	if MatchOsFireOS(os) {
+		return "fireos"
+	}
+	if MatchOsSmartCast(os) {
+		return "smartcast"
+	}
+	if MatchOsChromeOS(os) {
+		return "chromeos"
+	}
+	if MatchOsTvOS(os) {
+		return "tvos"
+	}
+	if MatchOsRoku(os) {
+		return "roku"
+	}
+	if MatchOsWebOS(os) {
+		return "webos"
+	}
+	if MatchOsTizen(os) {
+		return "tizen"
+	}
+	if MatchOsVidaa(os) {
+		return "vidaa"
+	}
+	if MatchOsReachTV(os) {
+		return "reachtv"
+	}
 	if MatchOsiOS(os) {
 		return "ios"
 	}
 	if MatchOsAndroid(os) {
 		return "android"
 	}
+	if MatchOsLinux(os) {
+		return "linux"
+	}
 	return ""
 }
diff --git a/normalize/os_fsm.go b/normalize/os_fsm.go
index 222308e..1d1aece 100644
--- a/normalize/os_fsm.go
+++ b/normalize/os_fsm.go
@@ -438,4 +438,2132 @@ func MatchOsAndroid(data string) bool {
 	return false
 }
 
+//line os_fsm.go:412
+const os_tvos_start int = 0
+const os_tvos_first_final int = 4
+const os_tvos_error int = -1
+
+const os_tvos_en_main int = 0
+
+//line os_fsm.rl:36
+
+func MatchOsTvOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:426
+	{
+		cs = os_tvos_start
+	}
+
+//line os_fsm.go:431
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 84:
+			goto st1
+		case 116:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 84:
+			goto st1
+		case 86:
+			goto st2
+		case 116:
+			goto st1
+		case 118:
+			goto st2
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 79:
+			goto st3
+		case 84:
+			goto st1
+		case 111:
+			goto st3
+		case 116:
+			goto st1
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 83:
+			goto tr4
+		case 84:
+			goto st1
+		case 115:
+			goto tr4
+		case 116:
+			goto st1
+		}
+		goto st0
+	tr4:
+//line os_fsm.rl:41
+		return true
+		goto st4
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+//line os_fsm.go:518
+		switch data[p] {
+		case 84:
+			goto st1
+		case 116:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:44
+
+	return false
+}
+
+//line os_fsm.go:542
+const os_roku_start int = 0
+const os_roku_first_final int = 6
+const os_roku_error int = -1
+
+const os_roku_en_main int = 0
+
+//line os_fsm.rl:51
+
+func MatchOsRoku(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:556
+	{
+		cs = os_roku_start
+	}
+
+//line os_fsm.go:561
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 6:
+			goto st_case_6
+		case 4:
+			goto st_case_4
+		case 5:
+			goto st_case_5
+		case 7:
+			goto st_case_7
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 82:
+			goto st1
+		case 114:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 79:
+			goto st2
+		case 82:
+			goto st1
+		case 111:
+			goto st2
+		case 114:
+			goto st1
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 75:
+			goto st3
+		case 82:
+			goto st1
+		case 107:
+			goto st3
+		case 114:
+			goto st1
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 82:
+			goto st1
+		case 85:
+			goto tr4
+		case 114:
+			goto st1
+		case 117:
+			goto tr4
+		}
+		goto st0
+	tr4:
+//line os_fsm.rl:56
+		return true
+		goto st6
+	st6:
+		if p++; p == pe {
+			goto _test_eof6
+		}
+	st_case_6:
+//line os_fsm.go:654
+		switch data[p] {
+		case 32:
+			goto st4
+		case 43:
+			goto st4
+		case 79:
+			goto st5
+		case 82:
+			goto st1
+		case 111:
+			goto st5
+		case 114:
+			goto st1
+		}
+		if 9 <= data[p] && data[p] <= 13 {
+			goto st4
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 79:
+			goto st5
+		case 82:
+			goto st1
+		case 111:
+			goto st5
+		case 114:
+			goto st1
+		}
+		goto st0
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+		switch data[p] {
+		case 82:
+			goto st1
+		case 83:
+			goto tr6
+		case 114:
+			goto st1
+		case 115:
+			goto tr6
+		}
+		goto st0
+	tr6:
+//line os_fsm.rl:56
+		return true
+		goto st7
+	st7:
+		if p++; p == pe {
+			goto _test_eof7
+		}
+	st_case_7:
+//line os_fsm.go:714
+		switch data[p] {
+		case 82:
+			goto st1
+		case 114:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof6:
+		cs = 6
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+	_test_eof7:
+		cs = 7
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:59
+
+	return false
+}
+
+//line os_fsm.go:741
+const os_fireos_start int = 0
+const os_fireos_first_final int = 7
+const os_fireos_error int = -1
+
+const os_fireos_en_main int = 0
+
+//line os_fsm.rl:66
+
+func MatchOsFireOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:755
+	{
+		cs = os_fireos_start
+	}
+
+//line os_fsm.go:760
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 7:
+			goto st_case_7
+		case 4:
+			goto st_case_4
+		case 5:
+			goto st_case_5
+		case 8:
+			goto st_case_8
+		case 6:
+			goto st_case_6
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 70:
+			goto st1
+		case 102:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 70:
+			goto st1
+		case 73:
+			goto st2
+		case 102:
+			goto st1
+		case 105:
+			goto st2
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 70:
+			goto st1
+		case 82:
+			goto st3
+		case 102:
+			goto st1
+		case 114:
+			goto st3
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 69:
+			goto tr4
+		case 70:
+			goto st1
+		case 101:
+			goto tr4
+		case 102:
+			goto st1
+		}
+		goto st0
+	tr4:
+//line os_fsm.rl:71
+		return true
+		goto st7
+	st7:
+		if p++; p == pe {
+			goto _test_eof7
+		}
+	st_case_7:
+//line os_fsm.go:855
+		switch data[p] {
+		case 43:
+			goto st4
+		case 45:
+			goto st4
+		case 70:
+			goto st1
+		case 79:
+			goto st5
+		case 84:
+			goto st6
+		case 102:
+			goto st1
+		case 111:
+			goto st5
+		case 116:
+			goto st6
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 70:
+			goto st1
+		case 79:
+			goto st5
+		case 102:
+			goto st1
+		case 111:
+			goto st5
+		}
+		goto st0
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+		switch data[p] {
+		case 70:
+			goto st1
+		case 83:
+			goto tr6
+		case 102:
+			goto st1
+		case 115:
+			goto tr6
+		}
+		goto st0
+	tr6:
+//line os_fsm.rl:71
+		return true
+		goto st8
+	st8:
+		if p++; p == pe {
+			goto _test_eof8
+		}
+	st_case_8:
+//line os_fsm.go:916
+		switch data[p] {
+		case 70:
+			goto st1
+		case 102:
+			goto st1
+		}
+		goto st0
+	st6:
+		if p++; p == pe {
+			goto _test_eof6
+		}
+	st_case_6:
+		switch data[p] {
+		case 70:
+			goto st1
+		case 86:
+			goto st4
+		case 102:
+			goto st1
+		case 118:
+			goto st4
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof7:
+		cs = 7
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+	_test_eof8:
+		cs = 8
+		goto _test_eof
+	_test_eof6:
+		cs = 6
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:74
+
+	return false
+}
+
+//line os_fsm.go:960
+const os_smartcast_start int = 0
+const os_smartcast_first_final int = 13
+const os_smartcast_error int = -1
+
+const os_smartcast_en_main int = 0
+
+//line os_fsm.rl:81
+
+func MatchOsSmartCast(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:974
+	{
+		cs = os_smartcast_start
+	}
+
+//line os_fsm.go:979
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		case 5:
+			goto st_case_5
+		case 6:
+			goto st_case_6
+		case 7:
+			goto st_case_7
+		case 8:
+			goto st_case_8
+		case 13:
+			goto st_case_13
+		case 9:
+			goto st_case_9
+		case 10:
+			goto st_case_10
+		case 11:
+			goto st_case_11
+		case 12:
+			goto st_case_12
+		case 14:
+			goto st_case_14
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 83:
+			goto st1
+		case 115:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 77:
+			goto st2
+		case 83:
+			goto st1
+		case 109:
+			goto st2
+		case 115:
+			goto st1
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 65:
+			goto st3
+		case 83:
+			goto st1
+		case 97:
+			goto st3
+		case 115:
+			goto st1
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 82:
+			goto st4
+		case 83:
+			goto st1
+		case 114:
+			goto st4
+		case 115:
+			goto st1
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 83:
+			goto st1
+		case 84:
+			goto st5
+		case 115:
+			goto st1
+		case 116:
+			goto st5
+		}
+		goto st0
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+		switch data[p] {
+		case 67:
+			goto st6
+		case 83:
+			goto st1
+		case 99:
+			goto st6
+		case 115:
+			goto st1
+		}
+		goto st0
+	st6:
+		if p++; p == pe {
+			goto _test_eof6
+		}
+	st_case_6:
+		switch data[p] {
+		case 65:
+			goto st7
+		case 83:
+			goto st1
+		case 97:
+			goto st7
+		case 115:
+			goto st1
+		}
+		goto st0
+	st7:
+		if p++; p == pe {
+			goto _test_eof7
+		}
+	st_case_7:
+		switch data[p] {
+		case 83:
+			goto st8
+		case 115:
+			goto st8
+		}
+		goto st0
+	st8:
+		if p++; p == pe {
+			goto _test_eof8
+		}
+	st_case_8:
+		switch data[p] {
+		case 77:
+			goto st2
+		case 83:
+			goto st1
+		case 84:
+			goto tr9
+		case 109:
+			goto st2
+		case 115:
+			goto st1
+		case 116:
+			goto tr9
+		}
+		goto st0
+	tr9:
+//line os_fsm.rl:86
+		return true
+		goto st13
+	st13:
+		if p++; p == pe {
+			goto _test_eof13
+		}
+	st_case_13:
+//line os_fsm.go:1166
+		switch data[p] {
+		case 37:
+			goto st9
+		case 79:
+			goto st12
+		case 83:
+			goto st1
+		case 111:
+			goto st12
+		case 115:
+			goto st1
+		}
+		goto st0
+	st9:
+		if p++; p == pe {
+			goto _test_eof9
+		}
+	st_case_9:
+		switch data[p] {
+		case 50:
+			goto st10
+		case 83:
+			goto st1
+		case 115:
+			goto st1
+		}
+		goto st0
+	st10:
+		if p++; p == pe {
+			goto _test_eof10
+		}
+	st_case_10:
+		switch data[p] {
+		case 48:
+			goto st11
+		case 83:
+			goto st1
+		case 115:
+			goto st1
+		}
+		goto st0
+	st11:
+		if p++; p == pe {
+			goto _test_eof11
+		}
+	st_case_11:
+		switch data[p] {
+		case 79:
+			goto st12
+		case 83:
+			goto st1
+		case 111:
+			goto st12
+		case 115:
+			goto st1
+		}
+		goto st0
+	st12:
+		if p++; p == pe {
+			goto _test_eof12
+		}
+	st_case_12:
+		switch data[p] {
+		case 83:
+			goto tr13
+		case 115:
+			goto tr13
+		}
+		goto st0
+	tr13:
+//line os_fsm.rl:86
+		return true
+		goto st14
+	st14:
+		if p++; p == pe {
+			goto _test_eof14
+		}
+	st_case_14:
+//line os_fsm.go:1245
+		switch data[p] {
+		case 77:
+			goto st2
+		case 83:
+			goto st1
+		case 109:
+			goto st2
+		case 115:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+	_test_eof6:
+		cs = 6
+		goto _test_eof
+	_test_eof7:
+		cs = 7
+		goto _test_eof
+	_test_eof8:
+		cs = 8
+		goto _test_eof
+	_test_eof13:
+		cs = 13
+		goto _test_eof
+	_test_eof9:
+		cs = 9
+		goto _test_eof
+	_test_eof10:
+		cs = 10
+		goto _test_eof
+	_test_eof11:
+		cs = 11
+		goto _test_eof
+	_test_eof12:
+		cs = 12
+		goto _test_eof
+	_test_eof14:
+		cs = 14
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:89
+
+	return false
+}
+
+//line os_fsm.go:1283
+const os_webos_start int = 0
+const os_webos_first_final int = 7
+const os_webos_error int = -1
+
+const os_webos_en_main int = 0
+
+//line os_fsm.rl:96
+
+func MatchOsWebOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:1297
+	{
+		cs = os_webos_start
+	}
+
+//line os_fsm.go:1302
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		case 7:
+			goto st_case_7
+		case 5:
+			goto st_case_5
+		case 6:
+			goto st_case_6
+		case 8:
+			goto st_case_8
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 87:
+			goto st1
+		case 119:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 69:
+			goto st2
+		case 87:
+			goto st1
+		case 101:
+			goto st2
+		case 119:
+			goto st1
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 66:
+			goto st3
+		case 87:
+			goto st1
+		case 98:
+			goto st3
+		case 119:
+			goto st1
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 79:
+			goto st4
+		case 87:
+			goto st1
+		case 111:
+			goto st4
+		case 119:
+			goto st1
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 83:
+			goto tr5
+		case 87:
+			goto st1
+		case 115:
+			goto tr5
+		case 119:
+			goto st1
+		}
+		goto st0
+	tr5:
+//line os_fsm.rl:101
+		return true
+		goto st7
+	st7:
+		if p++; p == pe {
+			goto _test_eof7
+		}
+	st_case_7:
+//line os_fsm.go:1413
+		switch data[p] {
+		case 32:
+			goto st5
+		case 43:
+			goto st5
+		case 84:
+			goto st6
+		case 87:
+			goto st1
+		case 116:
+			goto st6
+		case 119:
+			goto st1
+		}
+		if 9 <= data[p] && data[p] <= 13 {
+			goto st5
+		}
+		goto st0
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+		switch data[p] {
+		case 84:
+			goto st6
+		case 87:
+			goto st1
+		case 116:
+			goto st6
+		case 119:
+			goto st1
+		}
+		goto st0
+	st6:
+		if p++; p == pe {
+			goto _test_eof6
+		}
+	st_case_6:
+		switch data[p] {
+		case 86:
+			goto tr7
+		case 87:
+			goto st1
+		case 118:
+			goto tr7
+		case 119:
+			goto st1
+		}
+		goto st0
+	tr7:
+//line os_fsm.rl:101
+		return true
+		goto st8
+	st8:
+		if p++; p == pe {
+			goto _test_eof8
+		}
+	st_case_8:
+//line os_fsm.go:1473
+		switch data[p] {
+		case 87:
+			goto st1
+		case 119:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof7:
+		cs = 7
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+	_test_eof6:
+		cs = 6
+		goto _test_eof
+	_test_eof8:
+		cs = 8
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:104
+
+	return false
+}
+
+//line os_fsm.go:1501
+const os_tizen_start int = 0
+const os_tizen_first_final int = 6
+const os_tizen_error int = -1
+
+const os_tizen_en_main int = 0
+
+//line os_fsm.rl:111
+
+func MatchOsTizen(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:1515
+	{
+		cs = os_tizen_start
+	}
+
+//line os_fsm.go:1520
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		case 6:
+			goto st_case_6
+		case 5:
+			goto st_case_5
+		case 7:
+			goto st_case_7
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 84:
+			goto st1
+		case 116:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 73:
+			goto st2
+		case 84:
+			goto st1
+		case 105:
+			goto st2
+		case 116:
+			goto st1
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 84:
+			goto st1
+		case 90:
+			goto st3
+		case 116:
+			goto st1
+		case 122:
+			goto st3
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 69:
+			goto st4
+		case 84:
+			goto st1
+		case 101:
+			goto st4
+		case 116:
+			goto st1
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 78:
+			goto tr5
+		case 84:
+			goto st1
+		case 110:
+			goto tr5
+		case 116:
+			goto st1
+		}
+		goto st0
+	tr5:
+//line os_fsm.rl:116
+		return true
+		goto st6
+	st6:
+		if p++; p == pe {
+			goto _test_eof6
+		}
+	st_case_6:
+//line os_fsm.go:1629
+		switch data[p] {
+		case 84:
+			goto st5
+		case 116:
+			goto st5
+		}
+		goto st0
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+		switch data[p] {
+		case 73:
+			goto st2
+		case 84:
+			goto st1
+		case 86:
+			goto tr6
+		case 105:
+			goto st2
+		case 116:
+			goto st1
+		case 118:
+			goto tr6
+		}
+		goto st0
+	tr6:
+//line os_fsm.rl:116
+		return true
+		goto st7
+	st7:
+		if p++; p == pe {
+			goto _test_eof7
+		}
+	st_case_7:
+//line os_fsm.go:1666
+		switch data[p] {
+		case 84:
+			goto st1
+		case 116:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof6:
+		cs = 6
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+	_test_eof7:
+		cs = 7
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:119
+
+	return false
+}
+
+//line os_fsm.go:1693
+const os_linux_start int = 0
+const os_linux_first_final int = 5
+const os_linux_error int = -1
+
+const os_linux_en_main int = 0
+
+//line os_fsm.rl:126
+
+func MatchOsLinux(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:1707
+	{
+		cs = os_linux_start
+	}
+
+//line os_fsm.go:1712
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		case 5:
+			goto st_case_5
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 76:
+			goto st1
+		case 108:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 73:
+			goto st2
+		case 76:
+			goto st1
+		case 105:
+			goto st2
+		case 108:
+			goto st1
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 76:
+			goto st1
+		case 78:
+			goto st3
+		case 108:
+			goto st1
+		case 110:
+			goto st3
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 76:
+			goto st1
+		case 85:
+			goto st4
+		case 108:
+			goto st1
+		case 117:
+			goto st4
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 76:
+			goto st1
+		case 88:
+			goto tr5
+		case 108:
+			goto st1
+		case 120:
+			goto tr5
+		}
+		goto st0
+	tr5:
+//line os_fsm.rl:131
+		return true
+		goto st5
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+//line os_fsm.go:1817
+		switch data[p] {
+		case 76:
+			goto st1
+		case 108:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:134
+
+	return false
+}
+
+//line os_fsm.go:1842
+const os_vidaa_start int = 0
+const os_vidaa_first_final int = 5
+const os_vidaa_error int = -1
+
+const os_vidaa_en_main int = 0
+
+//line os_fsm.rl:141
+
+func MatchOsVidaa(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:1856
+	{
+		cs = os_vidaa_start
+	}
+
+//line os_fsm.go:1861
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		case 5:
+			goto st_case_5
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 86:
+			goto st1
+		case 118:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 73:
+			goto st2
+		case 86:
+			goto st1
+		case 105:
+			goto st2
+		case 118:
+			goto st1
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 68:
+			goto st3
+		case 86:
+			goto st1
+		case 100:
+			goto st3
+		case 118:
+			goto st1
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 65:
+			goto st4
+		case 86:
+			goto st1
+		case 97:
+			goto st4
+		case 118:
+			goto st1
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 65:
+			goto tr5
+		case 86:
+			goto st1
+		case 97:
+			goto tr5
+		case 118:
+			goto st1
+		}
+		goto st0
+	tr5:
+//line os_fsm.rl:146
+		return true
+		goto st5
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+//line os_fsm.go:1966
+		switch data[p] {
+		case 86:
+			goto st1
+		case 118:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:149
+
+	return false
+}
+
+//line os_fsm.go:1991
+const os_reachtv_start int = 0
+const os_reachtv_first_final int = 7
+const os_reachtv_error int = -1
+
+const os_reachtv_en_main int = 0
+
+//line os_fsm.rl:156
+
+func MatchOsReachTV(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:2005
+	{
+		cs = os_reachtv_start
+	}
+
+//line os_fsm.go:2010
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		case 5:
+			goto st_case_5
+		case 6:
+			goto st_case_6
+		case 7:
+			goto st_case_7
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 82:
+			goto st1
+		case 114:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 69:
+			goto st2
+		case 82:
+			goto st1
+		case 101:
+			goto st2
+		case 114:
+			goto st1
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 65:
+			goto st3
+		case 82:
+			goto st1
+		case 97:
+			goto st3
+		case 114:
+			goto st1
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 67:
+			goto st4
+		case 82:
+			goto st1
+		case 99:
+			goto st4
+		case 114:
+			goto st1
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 72:
+			goto st5
+		case 82:
+			goto st1
+		case 104:
+			goto st5
+		case 114:
+			goto st1
+		}
+		goto st0
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+		switch data[p] {
+		case 82:
+			goto st1
+		case 84:
+			goto st6
+		case 114:
+			goto st1
+		case 116:
+			goto st6
+		}
+		goto st0
+	st6:
+		if p++; p == pe {
+			goto _test_eof6
+		}
+	st_case_6:
+		switch data[p] {
+		case 82:
+			goto st1
+		case 86:
+			goto tr7
+		case 114:
+			goto st1
+		case 118:
+			goto tr7
+		}
+		goto st0
+	tr7:
+//line os_fsm.rl:161
+		return true
+		goto st7
+	st7:
+		if p++; p == pe {
+			goto _test_eof7
+		}
+	st_case_7:
+//line os_fsm.go:2151
+		switch data[p] {
+		case 82:
+			goto st1
+		case 114:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+	_test_eof6:
+		cs = 6
+		goto _test_eof
+	_test_eof7:
+		cs = 7
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:164
+
+	return false
+}
+
+//line os_fsm.go:2178
+const os_chromeos_start int = 0
+const os_chromeos_first_final int = 8
+const os_chromeos_error int = -1
+
+const os_chromeos_en_main int = 0
+
+//line os_fsm.rl:171
+
+func MatchOsChromeOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+
+//line os_fsm.go:2192
+	{
+		cs = os_chromeos_start
+	}
+
+//line os_fsm.go:2197
+	{
+		if p == pe {
+			goto _test_eof
+		}
+		switch cs {
+		case 0:
+			goto st_case_0
+		case 1:
+			goto st_case_1
+		case 2:
+			goto st_case_2
+		case 3:
+			goto st_case_3
+		case 4:
+			goto st_case_4
+		case 5:
+			goto st_case_5
+		case 6:
+			goto st_case_6
+		case 7:
+			goto st_case_7
+		case 8:
+			goto st_case_8
+		}
+		goto st_out
+	st0:
+		if p++; p == pe {
+			goto _test_eof0
+		}
+	st_case_0:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 99:
+			goto st1
+		}
+		goto st0
+	st1:
+		if p++; p == pe {
+			goto _test_eof1
+		}
+	st_case_1:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 72:
+			goto st2
+		case 99:
+			goto st1
+		case 104:
+			goto st2
+		}
+		goto st0
+	st2:
+		if p++; p == pe {
+			goto _test_eof2
+		}
+	st_case_2:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 82:
+			goto st3
+		case 99:
+			goto st1
+		case 114:
+			goto st3
+		}
+		goto st0
+	st3:
+		if p++; p == pe {
+			goto _test_eof3
+		}
+	st_case_3:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 79:
+			goto st4
+		case 99:
+			goto st1
+		case 111:
+			goto st4
+		}
+		goto st0
+	st4:
+		if p++; p == pe {
+			goto _test_eof4
+		}
+	st_case_4:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 77:
+			goto st5
+		case 99:
+			goto st1
+		case 109:
+			goto st5
+		}
+		goto st0
+	st5:
+		if p++; p == pe {
+			goto _test_eof5
+		}
+	st_case_5:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 69:
+			goto st6
+		case 99:
+			goto st1
+		case 101:
+			goto st6
+		}
+		goto st0
+	st6:
+		if p++; p == pe {
+			goto _test_eof6
+		}
+	st_case_6:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 79:
+			goto st7
+		case 99:
+			goto st1
+		case 111:
+			goto st7
+		}
+		goto st0
+	st7:
+		if p++; p == pe {
+			goto _test_eof7
+		}
+	st_case_7:
+		switch data[p] {
+		case 67:
+			goto st1
+		case 83:
+			goto tr8
+		case 99:
+			goto st1
+		case 115:
+			goto tr8
+		}
+		goto st0
+	tr8:
+//line os_fsm.rl:176
+		return true
+		goto st8
+	st8:
+		if p++; p == pe {
+			goto _test_eof8
+		}
+	st_case_8:
+//line os_fsm.go:2356
+		switch data[p] {
+		case 67:
+			goto st1
+		case 99:
+			goto st1
+		}
+		goto st0
+	st_out:
+	_test_eof0:
+		cs = 0
+		goto _test_eof
+	_test_eof1:
+		cs = 1
+		goto _test_eof
+	_test_eof2:
+		cs = 2
+		goto _test_eof
+	_test_eof3:
+		cs = 3
+		goto _test_eof
+	_test_eof4:
+		cs = 4
+		goto _test_eof
+	_test_eof5:
+		cs = 5
+		goto _test_eof
+	_test_eof6:
+		cs = 6
+		goto _test_eof
+	_test_eof7:
+		cs = 7
+		goto _test_eof
+	_test_eof8:
+		cs = 8
+		goto _test_eof
+
+	_test_eof:
+		{
+		}
+	}
+
+//line os_fsm.rl:179
+
+	return false
+}
+
 // vim: ft=go ts=4 sw=4 noet
diff --git a/normalize/os_fsm.rl b/normalize/os_fsm.rl
index 035ac08..bda8696 100644
--- a/normalize/os_fsm.rl
+++ b/normalize/os_fsm.rl
@@ -30,4 +30,154 @@ func MatchOsAndroid(data string) bool {
 	return false
 }
 
+%%{
+	machine os_tvos;
+	write data;
+}%%
+
+func MatchOsTvOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* 'tvos'i @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_roku;
+	write data;
+}%%
+
+func MatchOsRoku(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* ('roku'i ('os'i | ('+'|space) 'os'i)? ) @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_fireos;
+	write data;
+}%%
+
+func MatchOsFireOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* ('fire'i (('tv'i)? 'os'i | ('-'|'+') 'os'i)? ) @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_smartcast;
+	write data;
+}%%
+
+func MatchOsSmartCast(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* (('vizio'i)? 'smartcast'i ('os'i | '%20os'i)?) @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_webos;
+	write data;
+}%%
+
+func MatchOsWebOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* ('webos'i ('tv'i | ('+'|space) 'tv'i)? ) @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_tizen;
+	write data;
+}%%
+
+func MatchOsTizen(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* ('tizen'i ('tv'i)? ) @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_linux;
+	write data;
+}%%
+
+func MatchOsLinux(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* 'linux'i @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_vidaa;
+	write data;
+}%%
+
+func MatchOsVidaa(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* 'vidaa'i @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_reachtv;
+	write data;
+}%%
+
+func MatchOsReachTV(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* 'reachtv'i @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
+%%{
+	machine os_chromeos;
+	write data;
+}%%
+
+func MatchOsChromeOS(data string) bool {
+	cs, p, pe := 0, 0, len(data)
+	%%{
+		main := any* 'chromeos'i @{ return true } ;
+		write init;
+		write exec;
+	}%%
+	return false
+}
+
 // vim: ft=go ts=4 sw=4 noet
diff --git a/normalize/os_test.go b/normalize/os_test.go
index 7d69521..7b2ed3d 100644
--- a/normalize/os_test.go
+++ b/normalize/os_test.go
@@ -22,6 +22,85 @@ func TestNormalizeOs(t *testing.T) {
 			"			ios",
 			"iPod with ios",
 		},
+		"tvos": {
+			"tvOS",
+			"TVOS",
+			"tvos",
+			"Apple tvOS",
+		},
+		"roku": {
+			"roku",
+			"Roku",
+			"ROKU",
+			"rokuos",
+			"RokuOS",
+			"roku os",
+			"roku+os",
+			"Roku+OS",
+		},
+		"fireos": {
+			"fireos",
+			"FireOS",
+			"FIREOS",
+			"fire-os",
+			"fire+os",
+			"Fire+OS",
+			"fire",
+			"Fire",
+			"FIRE",
+			"firetvos",
+			"FireTVOS",
+		},
+		"smartcast": {
+			"smartcast",
+			"SmartCast",
+			"SMARTCAST",
+			"smartcastos",
+			"SmartCastOS",
+			"smartcast%20os",
+			"SmartCast%20OS",
+			"viziosmartcast",
+			"VizioSmartCast",
+			"VIZIOSMARTCAST",
+		},
+		"webos": {
+			"webos",
+			"WebOS",
+			"WEBOS",
+			"webostv",
+			"WebOSTV",
+			"webos tv",
+			"webos+tv",
+			"WebOS+TV",
+		},
+		"tizen": {
+			"tizen",
+			"Tizen",
+			"TIZEN",
+			"tizentv",
+			"TizenTV",
+			"TIZENTV",
+		},
+		"linux": {
+			"linux",
+			"Linux",
+			"LINUX",
+		},
+		"vidaa": {
+			"vidaa",
+			"Vidaa",
+			"VIDAA",
+		},
+		"reachtv": {
+			"reachtv",
+			"ReachTV",
+			"REACHTV",
+		},
+		"chromeos": {
+			"chromeos",
+			"ChromeOS",
+			"CHROMEOS",
+		},
 	} {
 		for _, s := range strings {
 			nos := Os(s)