
Episodes
- 1
1. Episode 570
21 Nov 1988
- 2
2. Episode 571
Date TBA
- 3
3. Episode 572
Date TBA
- 4
4. Episode 573
Date TBA
- 5
5. Episode 574
Date TBA
- 6
6. Episode 575
Date TBA
- 7
7. Episode 576
Date TBA
- 8
8. Episode 577
Date TBA

9. Episode 578
1 Dec 1988
Gordon has a headache.

10. Episode 579
2 Dec 1988
Luis and his old chair.
- 11
11. Episode 580
5 Dec 1988
Grammy Award winner Bobby McFerrin sings ABCs with Hoots the Owl. The Two-Headed Monster learns to blow bubbles. Maria and Luis try to reminisce about their wedding. Betty Lou sings the "Amigo" song. "Sesame Street News" correspondent Kermit the Frog reports on London Fog. Ernie and Bert leaky faucet skit. Cookie Monster sings about subtraction. Placido Flamingo performs a "Lost Toy Opera" with Big Bird.
- 12
12. Episode 581
Date TBA
- 13
13. Episode 582
Date TBA
- 14
14. Episode 583
8 Dec 1988
Telly’s birthday party.
- 15
15. Episode 584
9 Dec 1988
Maria and the Fat Blue man.
- 16
16. Episode 585
Date TBA
- 17
17. Episode 586
Date TBA
- 18
18. Episode 587
19 Dec 1988
An early Elmo meets Bob's deaf friend and learns to say "hello" in sign language. A classic skit of Phil Harmonic and Placido Flamingo live from the Nestropolitan Opera. A vintage animation of Gerald's dog, Sparky, re-imagined as an alligator. The Honkers play "Mary Had a Little Lamb" on their noses.
- 19
19. Episode 588
Date TBA
- 20
20. Episode 589
3 Jan 1989
Legendary chanteuse Lena Horne and Grover perform a duet about not being shy. "Monsterpiece Theater" presents "Alibaba and the 40 Thieves". The classic "Plants Need Water" and the "Invention of the Raisin" animations. Placido Flamingo stages a Sesame Street Opera. Kermit the Frog reports on the Three Little Pigs live for "Sesame Street News". Soap opera spoofs of "All My Children" and "Another School".
- 21
21. Episode 590
Date TBA
- 22
22. Episode 591
Date TBA
- 23
23. Episode 592
Date TBA
- 24
24. Episode 593
Date TBA
- 25
25. Episode 594
1 Mar 1989
- 26
26. Episode 595
Date TBA
- 27
27. Episode 596
Date TBA
- 28
28. Episode 597
Date TBA
- 29
29. Episode 598
Date TBA
- 30
30. Episode 599
23 Mar 1989

47. Eipsode 2598
26 Apr 1989
Loud talker Guy Smiley goes on safari and scares off the animals. A classic skit staring Ernie as "Old King Cole". The Two-Headed Monster sings a lullaby to itself. Snuffy writes a love letter to his grandmother. Mumford's magic trick accidentally shrinks David. Ernie hosts an arboreal fashion show.
- 129
129. Episode 2614
18 May 1989
Maria goes into labor.
- 130
130. Episode 2615 - Birth of Gabriela
19 May 1989
Sesame Street Season 20: quick answers
How many episodes are in Sesame Street Season 20?
Season 20 of Sesame Street has 33 episodes.
When did Sesame Street Season 20 come out?
Season 20 premiered on 21 Nov 1988 and its finale airs 19 May 1989.