What operating system do smart TVs use?

Related questions

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5. Which is better UHD or LED?
6. Is OLED better than LED?
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Tags

1. #systems
2. #android
3. #webos
4. #system
5. #samsung
6. #proprietary
7. #smartcast
8. #myhomescreen
9. #smart
10. #there
11. #while
12. #operating
13. #called
14. #respectively
15. #tizen
16. #panasonic
17. #vizio
18. #philips