Explanation:

- Option 1: to watch

- This is grammatically correct. "Enjoy" is often followed by a gerund (-ing form), but "to watch" can work in some contexts, although it is less natural here.

- Option 2: to see

- This is not idiomatic in this context. "Seeing" is more about perception, while "watching" is about actively engaging with TV.

- Option 3: watching

- This is the most natural and correct choice. "Enjoy" is typically followed by a gerund, making "watching" the best fit.

- Option 4: seeing

- Similar to "to see," it doesn't fit well. "Seeing" implies passive observation rather than engagement with programs.

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