Hi! I think he first started wearing a black shirt in like episode 120. Rumor has it that he made the switch because he had gained some weight and the black helped give more attraction to the leather jacket. That is also we he started zipping it up too.
If you look at the Happy days Trivia Answers section you will find the same answer.
Glad I could help~The T.
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I know you know but he don't haveta know-fonz
Wa Wa Wa-Chachi
Hi blue eyes-Chachi
Live fast, Love hard, and don't let anybody use your comb-fonz
I'm a twenty year man!-sargeant belcher
I've been a man all my life-fonzie
Potsie: I saw smoke coming out of fonzie's garage and then I heard screams! Fonz:hey hey hey Potsie: Well maybe not screams.
Some people are great lovers, some people are great fighters. I happen to be both.-Fonz
What does that mean Howard?-Marion
Sit on it-Howard
When they made the Fonz, they broke the mold! Woah-Fonzie
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[This message has been edited by The T (edited 06-25-2000).]