Here's one for all you Star Trek fans out there.
Series creator Gene Roddenberry appeared on To Tell The Truth in 1975. Not the first high profile creator to appear on the show (Marvel's Stan Lee appeared twice on Truth, and Bill Gaines of Mad Magazine fame was also a contestant), but this was the sort of outside-the-box thinking that kept the syndicated Truth going as long as it did.
Let's just get right to it, leading with an abridged reading of the Trek preamble by host Garry Moore.
I guess Rita Moreno (The Electric Company) wasn't a sci-fi fan.......