....a rerun of a show they haven't seen in years, and were surprised by something that you didn't know about it, when you last saw it?

For instance, I was surprised to find out a few years ago that Floyd was also on the color episodes of "The Andy Griffith show". And that some episodes of "Gomer Pyle U.S.M.C." that I always thought were in black-and-white were in color.

And, when N@N started showing "Bewitched" back about 1990 or 91, I was surprised that there were some black-and-white episodes.