Not horror-related, but this reminded me that the first time I saw Monty Python's Life of Brian was during Channel 4's 1991 Banned Season. I found a discussion and a list of what was shown in that season over on this forum here.

I also remember watching the documentary "Sex in Our Time" that followed the same night; what initially sounded promising ended up being just a group of women sat around talking about their vaginas. I also seem to recall that any interesting parts were broadcast as audio only with the video blacked out. :-(