Season guide
Sesame Street: Season 12
130 episodes
Premiered Nov 24, 1980 Updated Sep 25, 2026
Previously on Sesame Street
Season 12 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Sesame Street Season 11.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 12 Episodes
Episode Guide
🛡️ SPOILER SHIELD
Season 12 Progress Shield
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S12·E130
Mytharc
Episode 1575
May 22, 1981
During a heat wave, Oscar finds he has no one to bother. Later, Fred Rogers of Mister Rogers' Neighborhood judges a race between Big Bird and Snuffy. Sponsored by H, K, 12