mcogilvie is right with how to extract the files from iTunes.
If you are a GTD|Connect Member, there are two ways to download audio/video:
1. Log in with your GTD|Connect username and password and browse to the audio/video that you would like to download and click on the download button. Then copy the files you downloaded to the Android device. You can then listen/watch them if the device is able to play .mp3 and .m4v files.
2. Subscribe to the Members Only GTD|Connect Podcast using iTunes and "Get" all the files you would like to listen/watch. After the downloads have finished, find the files you just downloaded in iTunes in:
PC:
C:UsersYour User NameMusiciTunesiTunes MediaPodcastsGTD_Connect Members-Only Podcasts
Mac:
/Users/User Name/Music/iTunes/iTunes Music/Podcasts
From the podcast folder, you can copy the files onto your Android phone and listen/watch them if the device is able to play .mp3 and .m4v files.