On my drives to Sacramento every week for my brewery internship I make sure I visit www.TheBrewingNetwork.com and download various episodes of their great shows.
I suggest Brew Strong hosted by brewing legends Jamil Zainasheff and John Palmer if you are looking for some really great info for homebrewing. Along with shows on specific topics and issues relevant to the homebrewer they also have great Q&A episodes. Here is their show on aeration.
If you are interesting in the idea of cooking with beer as an ingredient (I suggest deglazing a pan with beer) or want to have a multi-course beer dinner then I suggest you listen to The Home Brewed Chef with Sean Paxton.
Visit the Brewing Network for other great shows.