For some time I have been studying the Podcasts and Webcasts from Human Factors International, and I say studying because just looking is not enough! (Specially if you check the Webcast, extensive and full of examples).
If you do not know or have not seen them yet, drop by the webcast and podcast section of Human Factors International, totally worth it! (some of them are old but still in force!)
Next you have just some of my favourites (from both the webcast and from their youtube channel)