Somewhere along the line I gave up the TV culture except for Jeopardy. I prefer to improve my mind by reading books and devolving my mind by frittering away my life on Y!A. It's a balancing act.
Jeopardy is a classic game, but doesn't really work around the water-cooler.
Let me know if you get interested in the original Outer Limits or Star Trek or Lone Ranger Episodes. I was culturally "with it" back then...