Nearly five decades after its premiere, Welcome Back, Kotter is still one of TV’s most beloved sitcoms.

The Sweathogs, John Travolta’s breakout as Vinnie Barbarino, Gabe Kaplan’s sharp wit, and John Sebastian’s chart-topping theme song all helped cement its place in pop culture history.

#WelcomeBackKotter #JohnTravolta #ClassicTV #1970sTV #RetroTelevision #SitcomHistory #TVAnniversary #PopCultureHistory #VintageTV #TelevisionNostalgia #ClassicSitcoms

https://www.hollywoodoutbreak.com/2025/09/08/john-travolta-forever-barbarino-welcome-back-kotter-turns-50/