What Happened on the Final Episode of ‘Welcome Back, Kotter’?

TV shows like Head of the Class and Boy Meets World may have provided us with plenty of hilarious and heartfelt classroom moments, but there’s only one school-set sitcom that dared to immortalize the ultimate burn, “up your nose with a rubber hose”: Welcome Back, Kotter. The show, which debuted in 1975, starred comedian Gabe Kaplan as Mr. Kotter, a Brooklyn-based high-school teacher placed in charge of rough and rowdy remedial class known as “the Sweathogs.” Lasting four seasons on ABC, the show gave us a diverse cast of characters, including the cocky Vinnie Barbarino (played by a new-on-the-scene John Travolta).