Just stumbled on the site Learn Excel from MrExcel Video Podcast.

Bill Jellen already has a couple dozen videos up and it looks like he’s still updating almost daily.

Very cool. The picture-in-picture is a great addition also.

A couple more links: Podcast Feed, Directions on Subscribing with Itunes

(note, the file format is mp4, so you will have to open them with a program that plays mp4 video. I used Quicktime. Winamp opened the file by default and just played the music