Welcome Back Kotter

• 1-1 Pilot
• 1-2 The Election
• 1-3 Basket Case
• 1-4 Whodunit?
• 1-5 The Great Debate
• 1-6 No More Mr. Nice Guy
• 1-9 Mr. Kotter, Teacher
• 1-10 Barbarino's Girl
• 1-11 The Reunion
• 1-12 California Dreamin'
• 1-13 Arrividerci, Arnold
• 1-14 The Sit-In
• 1-15 The Longest Weekend
• 1-16 Dr. Epstein, I Presume
• 1-20 The Telethon
• 1-21 Kotter Makes Good
• 1-22 Father Vinnie

Season 2

• 2-1 Sweatside Story
• 2-2 A Love Story
• 2-3 Gabe Under Pressure
• 2-4 The Museum
• 2-5 Career Day
• 2-6 Inherit The Halibut
• 2-7 Sweathog Clinic for the Cure of Smoking
• 2-8 Chicken a la Kotter
• 2-9 The Fight
• 2-10 Sweathog, Nebraska Style
• 2-11 Sadie Hawkins Day
• 2-12 Hello, Ms. Chips
• 2-13 Has Anyone Seen Arnold? (1)
• 2-14 There Goes Number 5 (2)
• 2-15 Horshack vs. Carvelli
• 2-16 Hark, the Sweatkings
• 2-17 Sweatgate Scandal
• 2-18 Caruso's Way
• 2-19 Kotter and Son
• 2-20 The Littlest Sweathog
• 2-21 I'm Having Their Baby
• 2-22 Radio Free Freddie
• 2-23 I Wonder Who's Kissing Gabe Now?

Season 3

• 3-5 Brother, Can You Spare a Million?
• 3-6 Just Testing
• 3-8 What a Move!
• 3-9 A Novel Idea
• 3-16 Sweathog Christmas Special
• 3-17 Sweatwork
• 3-18 Meet Your Teacher
• 3-19 Epstein's Term Paper
• 3-20 There's No Business Like Show Business (1)

Season 4

• 4-1 The Drop-Ins Part 1
• 4-2 The Drop-Ins Part 2
• 4-3 Frog Day Afternoon
• 4-6 Don't Come Up and See Me Sometime
• 4-7 Once Upon A Ledge
• 4-8 Barbarino's Boo-Boo
• 4-9 Washington's Clone
• 4-10 X-Rated Education
• 4-11 The Barbarino Blues
• 4-13 Bride and Gloom
• 4-15 A Winter's Coat Tail
• 4-17 The Sweat Smell of Success
• 4-20 Oo-Oo, I Do (1)