When you say "watch TV", it depends on your interpretation of the meaning.
If you mean watching something as it airs on TV through antenna or cable, not that much really. The only time I do that is at work during my breaks, right before work or right after work.
However, I do watch many streaming services. I have Netflix, Hulu, Amazon Prime Video, Anime Tube Unlimited and recently Cartoon Tube TV and Tubi TV. All of which are on various devices connected to my TV. On top of that, I have various movies on an external hard drive connected to the same TV.
If you mean the latter, quite a bit. I feel a little addicted to these streaming services. Heck, I'm looking forward to Disney's take on it. You can bet money that I'm getting it. Yeah, I'm planning an adjustment so I can pay for these. Sure, the extra money I have is helping, but it won't last.