Thank god nothing rhymed with the name Kotter. ... He wrote a sentimental song about a teacher going back to his alma mater, i.e. “Welcome Back”. Originally the show was going to be called “Kotter”, but producers changed the name of the show after hearing Sebastian's song, which became a #1 hit on Billboard!

Why did Gabriel Kaplan leave Welcome Back, Kotter?

Why did Travolta leave Welcome Back Kotter? Gabe Kaplan and John Travolta both left the series after its third season. Kaplan left after two episodes last season, due to creative differences with producer James Komack. Kaplan's name is still in the credits, but he has rarely appeared in the series.

Is it Welcome Back Carter or Kotter?

The popular theme song, "Welcome Back", written and recorded by John Sebastian, former frontman for The Lovin' Spoonful, became a No. 1 hit in the spring of 1976. The show was originally going to be called Kotter, but that was changed because of the theme song lyrics.