This is a great question! Recently I was thinking about how television doesn't really have much to offer any more that's decent, that doesn't portray people in violent circumstances, or that isn't just plain stupid and ridiculous!
Now, having said all that, I will add, there are still some very good programs on T.V., but they are few in number in my opinion. For instance, I think that Masterpiece Classic (BBC) is absolutely brilliant! I have loved it for many years because they produce such lovely classics, and I guess that's how they came to change the name of the program from Masterpiece Theatre to Masterpiece Classic. In addition, there is a channel with old movies, I think it's AMC, and they have these really great old movies they put on, with no commercials. And, I'm sure there must be other good stuff out there as well.
I actually think that we certainly can do without television, and that one day, it will probably become obsolete, and it may be quite soon. I believe this will be the case simply because right now, you can get any movie and lots of T.V. programs from Net Flix, (that's what I do). And, then I watch the few good programs that are on T. V. People also get T. V. programs and movies from Blockbuster and other sources, so it seems pretty inevitable to me.