Seasons 1 and 2 were the series’ strongest ... At its height, during its second season, Welcome Back, Kotter ranked No. 13; ...

Welcome Back, Kotter was launched as a vehicle for the funnyman, and he appeared in nearly every episode over its four-season ...

Gabe Kotter is a high-school teacher with a bunch of unruly students in his class. The student troublemakers are led by Vinnie Barbarino, who has a knack for rhyming insults.