As far as TCBS doing 'horror', it was the 70s; I do remember them doing 'somewhat mental anguish' spoofs.
What I'll always remember is the outstanding coverage of "Gone With the Wind", because, they did it after the FIRST TELEVISION AIRING of the movie. I was 13, and you could go to ANY of your friend's houses, and EVERYONE had it on. The men didn't complain (which always made me think it COULDN'T have aired on Monday night re: Howie Cosell).
Patti
PS...I may be having a faulty memory....but, in my mind's eye, do I see Carol Burnett dressed as Bride of Frankenstein??