Well in terms of economics what you're talking about is more specialization and niche audiences being served. HBO made itself into the network to watch smart television during the last decade. Right now that's less true as other networks figured out that people like smart things.

I'd say if you were not watching "The Wire" or "Six Feet Under" that you're missing out on something rather interesting. "The Wire" was unique partially because it was like a very long, very good movie in terms of quality and respect for the audience.

There's so much good television now that I don't have patience for the argument that TV is worthless. I don't turn on the television except to watch something specific but when I do I find the quality seems to get better year after year even with my favorite shows ending. More shows are willing to experiment and try to reach new audiences.

I won't speak to the shows on Discovery or whatever since they sound dumb to me but the shows with actual plot and characters are better than ever.