It was great to get your letter! I'm sorry to hear that your parents think you watch too much TV. It's understandable that they worry about you wasting time, but it's also important to relax.
To answer your questions:
How much do you watch TV? I try to limit my TV time to about 1-2 hours a day, mainly in the evenings. I feel it's important to balance screen time with other activities.
What do you prefer: watching TV or browsing the Internet, why? I prefer browsing the Internet. There's so much more information and variety available online, and I can learn new things or connect with friends. TV is more passive for me.
What else do you do in your free time? In my free time, I enjoy reading books, listening to music, playing sports with my friends, and sometimes I work on a hobby like drawing.
Write back soon!
Best,
[Your Name]