We all have seen lists of bloopers, inconsistencies on continuity, etc for the Facts of Life. I think I came across that was never mentioned in "Rough Housing". At about the 25 second mark of the Vimeo version of the episode where Mrs. Garrett greets the Drummonds you can see where it looks like Tootie/Kim is trying to catch herself on the couch after falling or tripping on her roller-skates. It's very quick and you only see part of Tootie/Kim entering the screen on the right.
https://www.dailymotion.com/video/x6rxhet

Nice catch, 80s Dude! :lol: