My favorite TV watching is on weekends when C-SPAN presents authors and their books, and some panel presentations. I also like the science and history chanels.
As for shows, I like Bones, Burn Notice, CSI and Saving Grace. Good writing and acting---not boring. I have found Parenthood to be enjoyable, well written and acted.
For talking heads, I like Rachel Maddow, Keith Olbermann, and Charlie Rose.
I like Don Lemon, part time host on CCN. He's a class act.
I miss Bill Moyer's show on PBS - he was one of the best.