The best way to view the visual podcast is in iTunes, which lets you view all the diagrams, notes and equations in my Powerpoint slides plus closeup views of the doc cam PDFs. To do this you have to
- use the get button
, which downloads the selected object and all its artwork into your iTunes library; - or use the subscribe button
, which subscribes to the podcast and downloads the most recent episode into your iTunes Podcasts library. As new episodes become available, if you are connected to the Internet, the iTunes application automatically downloads the new episodes. Recently added episodes that have not been downloaded to iTunes appear dimmed. For more information on podcasts, see the iTunes online help. 
pop out the "Now Playing" window using the playback buttons, then maximize to full screen.
If you only get onto iTunes U and don't use "Get" or "Subscribe" , you will only hear the audio. So download the podcasts onto your computer to get the full visual content.
