Having spent 25 hours in a hospital waiting room last week, I had to order one of these after reading about it in our local paper:

http://www.tvbgone.com/home.php

I can't stand TV at the best of times, but the people on Eyewitless News and Accident News really get to me. I'm looking forward to having this gadget!

 

I'm anxiously awaiting Cell Phone-B-Gone. And yes it will work on a moving car.

 

Hi:

There was a compnay in Isreal who was selling a cell phone jammer. The device was the size of a pack of cigs, and would basically emulate a strong cell tower, then drop any phone connecting to it.
I'm sure one could use it for a while before the FCC caught up with you. (;

BTW, that tv thing won't work on my tv. It's around 25 years old -- hand me down from Grandma. I keep telling people I'll buy a new one after the car is paid off.
-s