Oo, Oo, I Do (1)

May 25, 1979
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Welcome Back, Kotter - S4 - E20

Oo, Oo, I Do (1)

Arnold's relationship with Mary gets serious. Then he finds out he has to move and leave the school. Upset, Arnold decides to propose marriage to Mary. She accepts.

Welcome Back, Kotter: Season 4 - 23 Episode s