Time alone is not enough to reach the top 5% or better in a game. You need to be focused and put a lot of effort into improving.

It's quite draining, and nothing like watching TV.

Oh, true. I was just reacting to the 2h-a-day.

I do tv watching equivalent at times when I tired for focused activities or when I also do something else on the side.

It is just not the same. You play chess at your mental prime-time basically, to challenge and tire the brain. You watch tv/youtube to get rest.

I usually use sleep to rest.