This was posted on youtube 5 years ago but i just came across it. Surprised noone else has posted about it. Completely different than what appears on the Doc/Live Concert video. I also have in my stash of vhs tapes an outtake of The Chain that's different from the final video but have not seen it appear on youtube.

Anyway...
https://www.youtube.com/watch?v=1Fi3NGwnE3c