My favorite cooking shows usually end up being Gordon Ramsay's. I am a big fan of Hell's Kitchen as well as the BBC show the F Word. Its amazing to me to to watch the passion he puts into his cooking.
The Travel Channel also offers three good food oriented shows. Bizarre Foods with Andrew Zimmer is a kick as is Man vs Food with Adam Richmond. Anthony Bourdain's No Reservations is good as well.
I like to see how food interplays within society and culture. Everything from eating raw camel meat in Ethiopia to gulping down a Big Jud burger from Boise ID. Food is such an integral part of being human and what connects us. Whether it is a state dinner with presidents or just a tailgate party it is what should draw us together as a world culture.