In addition to the occasional human factors-related IDSA podcast, there are a few human factors and usability related podcasts out there if you look for them. Here are a few that are accessible via the iTunes store (typically for free). This list is by no means complete - please add your own recommendations via the comments feature.
- Design Critique: Products for People: Tim and Tom's conversational discussions of current product designs with designers and users. Emphasizes consumer electronics and software products and design processes.
http://www.designcritique.net/ - Icon-o-Cast: A podcast by Lunar Design: Not limited to human factors, covers a range of industrial design people, products and issues.
http://www.lunardesign.com/podcast/index.html - UXPod: User Experience Podcast: Gerry Gaffney primarily presents interviews with leaders in user experience process. Software/usability focused, with some product design discussions.
http://uxpod.com/ - Humech Podcast Series: "academic discussions of current work in human-machine systems". Tends to focus on virtual reality and research-oriented content.