I have some but not all of them.
Do you have the KC & The Sunshine Band episode?
https://lostmediawiki.com/Behind_The_Music_(partially_lost_VH1_documentary_series;_1997-2014) ask in the comments here. There was two working links at one point in the comments.
Thanks, but unfortunately the link for that episode only leads to a trailer for that episode that I uploaded to my YouTube channel a few years ago. 😄 Good site, though.