I vaguely recall watching (and enjoying) Dotto, a game show that was on both CBS and NBC in 1958. It is now best remembered as the first quiz program to be outed for giving the contestants the answers in advance. This triggered a cascade of similar revelations about shows like Twenty-One and The 64 Thousand Dollar Question — the infamous Game Show Scandals. Here we have a good article about Dotto and what happened there.