I can't seem to find any video evidence of it, unfortunately, but I very clearly remember several Jeopardy! eps. from 1997-8 that plugged the TPiR electronic handheld game as a consolation prize. I assume they had some kind of general contract with Tiger, but it was still very strange to see a different game show--from a competing production company, no less--advertised.
Were there any other instances, besides this and that Eye Guess ep. where Bill shows the Password home game as a joke, where a game show advertised a home game other than their own?
