I have been TV free for over six years now. I don't miss much. I do have internet, newspapers, magazines, radio. It's ironic, because I make my living as a cinematographer/videographer, and work a lot for network television programming. I also see what happens behind the scenes and I am not impressed.
I am in the process of becoming car-free. In the last year my car caught fire and was stolen twice and I live in a mid-sized midwest city (Kansas City). I spent thousands of dollars on that beater car last year and I drove it probably a few thousand miles. I'm sure it cost me at least a dollar a mile or more.
My only difficulties with being car-free are transporting gear, hills (believe it or not, we have some pretty good hills here), and distance (urban sprawl is bad here). I'm leaning towards purchasing a folding bike (Birdy) with an electronic engine (BionX) to assist with the hills and distance. I have not come up with a viable solution for cargo yet.