What is an Apple TV and what does it do?

Related questions

1. Is CNN free on Apple TV?
2. Can I get live TV on Apple TV?
3. Can I watch live TV on Apple TV?
4. Can you watch live TV on Apple TV Canada?
5. Can I watch TV channels on Apple TV?
6. Does Apple TV have Netflix?
7. Is there a monthly fee for Apple TV?
8. Can you watch live TV on Apple TV?
9. Can I watch Freeview channels on Apple TV?
10. Is Apple TV worth buying?

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