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Welcome Back, Kotter: 4x21
Oo, Oo, I Do (2)
Arnold gets upset when the other Sweathogs tease him about not being able to provide for Mary, and he vanishes. Mary finds him and convinces him not to worry, and the two get married.
4 - 1The Drop-Ins (1) Nov. 25, 1978- 4 - 2The Drop-Ins (2) Sep. 18, 1978
- 4 - 3Beau's Jest Sep. 25, 1978
- 4 - 4Don't Come Up and See Me Sometime Sep. 11, 1978
- 4 - 5Once Upon a Ledge Oct. 02, 1978
- 4 - 6The Sweatmobile Sep. 11, 1978
- 4 - 7Barbarino's Boo-Boo Oct. 21, 1978
- 4 - 8X-Rated Education Oct. 28, 1978
- 4 - 9The Barbarino Blues Nov. 04, 1978
- 4 - 10Washington's Clone Nov. 11, 1978
- 4 - 11Frog Day Afternoon Oct. 09, 1978
- 4 - 12A Little Fright Music Dec. 02, 1978
- 4 - 13A Winter's Coat Tail Dec. 16, 1978
- 4 - 14Bride and Gloom Jan. 13, 1979
- 4 - 15Barbarino's Baby Feb. 03, 1979
- 4 - 16The Goodbye Guy Feb. 10, 1979
- 4 - 17Come Back, Little Arnold Feb. 24, 1979
- 4 - 18The Sweat Smell of Success Mar. 03, 1979
- 4 - 19The Gang Show Mar. 17, 1979
- 4 - 20Oo, Oo, I Do (1) May. 25, 1979
- 4 - 21Oo, Oo, I Do (2) May. 25, 1979
- 4 - 22I'm Okay, But You're Not Jun. 01, 1979
- 4 - 23The Breadwinners Jun. 08, 1979
