I don't have the time these days. No my life is not a hectic whirlwind of activities but I enjoy doing photography and as such I have a creative hobby that often keeps me either out of the house shooting pics or in front of a PC editing or chatting with fellow photographers. I'm not alone, lots of people have other interests that don't involve something so passive as watching TV. We have the internet giving us the ability to take part and communicate with like minded people who enjoy the same hobbies and activities.
When I'm commuting to my dayjob I'll often watch educational things like tutorial videos from places like Pluralsight or Lynda,com on my tablet, the videos are either about IT topics or Photography. In this day and age you need to be a jack-of-all-trades to survive in IT and if you have a knowledge of all sorts of areas, you tend to remain useful to your employer. My precious free time is split between my favourite pasttime and my need to stay informed and educated in order to keep paying the bills and allowing me to enjoy my hobby. When I do sit down and watch TV it's often a half hour comedy here or there that's I've previously bought, usually something I've seen many times before so I can put it on in the background a bit like a radio station.
I'm not alone, we have so many opportunities available that you have many choices how you wish to use your free time. If you work in IT you might have to work at all sorts of odd times, weekends, evenings, etc so you have to make the most of your free time when you get it. TV takes a lot of time and it's hard to justify being in the right place at the right time to watch a live broadcast, it simply doens't make sense in the busy world we all live in these days.