What is free to air TV channels?

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Tags

1. #content
2. #signal
3. #receive
4. #other
5. #requiring
6. #ongoing
7. #unencrypted
8. #clear
9. #equipment
10. #allowing
11. #broadcast
12. #television
13. #radio
14. #without
15. #appropriate
16. #person
17. #listen
18. #receiving
19. #subscription
20. #services