Today, he's known as a major movie star, but Tom Hanks actually got his start on a 1980s sitcom that launched his career . "Bosom Buddies" introduced mass audiences to the actor, but "Happy Days" arguably had almost as big a hand in propelling him to true stardom. Hanks, who has essentially become the everyman Daniel Day-Lewis, guest-starred in the fifth episode of the show's 10th season, "A Little Case of Revenge," where he became infamous for playing a character who became the first person to ever hit the great Arthur Fonzarelli (Henry Winkler). That guest spot also brought Hanks to the attention of two individuals that would give him his big screen breakthrough just two years later.

By season 10, "Happy Days" was at an odd point in its evolution. Original star Ron Howard — who pla

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