Barnabas Collins was mentioned by one of the cast of Mystery Science Theater 3000. The Rifftrax group was doing a humorous send up of Doctor Who-The Five Doctors. My memory is not too clear, but I believe it was the First Doctor and Tegan making their way through the dimly lit corridors of the Dark Tower in the Death Zone on Gallifrey One of the Rifftrax characters made mention of Barnabas Collins. I wish I could be more specific. It had been a long day. Still it was nice to hear DS alluded to at a Doctor Who presentation.