Cartalk is a very funny radio program on the NPR radio network. It's hosted by two car repair mechanics, Tom and Ray, who answer questions about car troubles. Tom and Ray are extremely funny, making the program fun to listen to and interesting. There's even a weekly puzzler that'll usually keep you listening to next week's program, just to find out the answer.
While this is all great, they also have one of the most tantalizing web sites on the Internet: you can hear the puzzler and last week's puzzler answer if you missed it, read some of the more interesting fan mail, look at the National Highway Traffic Safety Administration's complaint database about your car, read Tom and Ray's opinions about your car, and much more- there's even your Daily Dollop of Didactic Diversion!
If you're wondering where you can find Cartalk on the radio, you can find the station and time Cartalk is on near you by going to their web site.