Season
- Season 4 1978-11-25
- Season 3 1977-09-29
- Season 2 1976-09-23
- Season 1 1975-09-09
- Season 0
Episode
- Episode 1: The Drop-Ins (1)
- Episode 2: The Drop-Ins (2)
- Episode 3: Beau's Jest
- Episode 4: Don't Come Up and See Me Sometime
- Episode 5: Once Upon a Ledge
- Episode 6: The Sweatmobile
- Episode 7: Barbarino's Boo-Boo
- Episode 8: X-Rated Education
- Episode 9: The Barbarino Blues
- Episode 10: Washington's Clone
- Episode 11: Frog Day Afternoon
- Episode 12: A Little Fright Music
- Episode 13: A Winter's Coat Tail
- Episode 14: Bride and Gloom
- Episode 15: Barbarino's Baby
- Episode 16: The Goodbye Guy
- Episode 17: Come Back, Little Arnold
- Episode 18: The Sweat Smell of Success
- Episode 19: The Gang Show
- Episode 20: Oo, Oo, I Do (1)
- Episode 21: Oo, Oo, I Do (2)
- Episode 22: I'm Okay, But You're Not
- Episode 23: The Breadwinners
Welcome Back, Kotter Season 4
Welcome Back, Kotter is an American television sitcom starring Gabe Kaplan and featuring a young John Travolta. Videotaped in front of a live studio audience, it originally aired on the ABC network from September 9, 1975, to June 8, 1979.
