Carleton University delivers classes via pod-casts.

Carleton says it is the first university in the world to offer an entire course of video-recorded lectures through iTunes for playback on iPods, cell phones, Sony Corp.'s PlayStation Portable and the common personal computer.
“Students actually download the lecture as they would a song,” Burk says. “These days, students simply expect to see what they need on a screen.”
What they get, for free, is a complete record of classroom events, captured by at least two broadcast TV cameras that follow the professor's moves and comments. Either a switcher or the professor himself changes camera angles as necessary, including overhead shots of lab demonstrations and the text from slides and PowerPoint presentations.