Welcome Back, Kotter: Season 4

This season started on November 25, 1978. The table lists episodes with recorded air dates up to September 28, 2026.

Ep	Title and air date	My place
1	The Drop-Ins (1)November 25, 1978 · 30 min
2	The Drop-Ins (2)September 18, 1978 · 30 min
3	Beau's JestSeptember 25, 1978 · 30 min
4	Don't Come Up and See Me SometimeSeptember 11, 1978 · 30 min
5	Once Upon a LedgeOctober 2, 1978 · 30 min
6	The SweatmobileSeptember 11, 1978 · 30 min
7	Barbarino's Boo-BooOctober 21, 1978 · 30 min
8	X-Rated EducationOctober 28, 1978 · 30 min
9	The Barbarino BluesNovember 4, 1978 · 30 min
10	Washington's CloneNovember 11, 1978 · 30 min
11	Frog Day AfternoonOctober 9, 1978 · 30 min
12	A Little Fright MusicDecember 2, 1978 · 30 min
13	A Winter's Coat TaleDecember 16, 1978 · 30 min
14	Bride and GloomJanuary 13, 1979 · 30 min
15	Barbarino's BabyFebruary 3, 1979 · 30 min
16	The Goodbye GuyFebruary 10, 1979 · 30 min
17	Come Back, Little ArnoldFebruary 24, 1979 · 30 min
18	The Sweat Smell of SuccessMarch 3, 1979 · 30 min
19	The Gang ShowMarch 17, 1979 · 30 min
20	Oo, Oo, I Do (1)May 25, 1979 · 30 min
21	Oo, Oo, I Do (2)May 25, 1979 · 30 min
22	I'm Okay, But You're NotJune 1, 1979 · 30 min
23	The BreadwinnersJune 8, 1979 · 30 min