A turning point in the history of Cheers as over the course of two episodes, Sam starts realizing some of his deep emotional and character flaws.  But does it work as comedy gold?  Is it more of "Slimy Sam", as Randy puts it, that's difficult to laugh along with? Or is it the long but progressively improving growth in a character's journey as George would contend?  Plus we get multiple chances to discuss Sam's hair and the most powerful use of the word "maybe" in sitcom history.  Order up some lobster, be sure to eat everything including the green stuff, and enjoy "Hot Rocks" and "What's Up, Doc?"!  (S7E17 starts -