Everybody knows about Saved by the Bell. Even if you weren't alive to experience the magic firsthand, you've undoubtedly heard tales of one of the greatest Saturday morning programs of all time from those who were lucky enough to be there.

What you might not know is that before he was on Saved by the Bell, Zack Morris, the hero of the show, was on a somewhat similar show called Good Morning, Miss Bliss (as were Screech, Lisa and Mr. Belding).

While the shows had some similarities (characters), the differences (mind-bending) are glaring and lead to a startling truth: