Well iafd gives these three movies when you do a "performed in same scene" search with CB and RW
Scared Stiff (1984)
Squalor Motel (1985)
Family Secrets (1985)
I've wanted to track down/see Family Secrets for ages, but have never been able to. It doesn't seem to exist anywhere. Assuming you've already checked the other two, maybe the scene you're looking for comes from Family Secrets?
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