Season
Season 4 Episode
- Season 1 The Great Debate
- Season 1 Basket Case
- Season 1 Welcome Back (Pilot)
- Season 1 Whodunit?
- Season 1 The Election
- Season 1 No More Mister Nice Guy
- Season 1 Classroom Marriage
- Season 1 One of Our Sweathogs Is Missing
- Season 1 Mr. Kotter, Teacher
- Season 1 The Reunion
- Season 1 Barbarino's Girl
- Season 1 California Dreamin'
- Season 1 Arrividerci, Arnold
- Season 1 The Longest Weekend
- Season 1 The Sit-In
- Season 1 Follow The Leader (1)
- Season 1 Follow The Leader (2)
- Season 1 Dr. Epstein, I Presume
- Season 1 One Flu Over The Cuckoo's Nest
- Season 1 The Telethon
- Season 1 Kotter Makes Good
- Season 1 Father Vinnie
Welcome Back, Kotter - Season 1 Episode 19 One Flu Over The Cuckoo's Nest
7.25 30 minutes A flu epidemic hits Buchannan and everybody gets sick except for Kotter, Horshack and a few students in the other classes. In the end, the few healthy students team up with the remaining Sweathogs in the classroom.
