Sesame Street / Season 10 S10E21 Episode 21 Sesame Street Netflix Share WhatsApp Telegram X (Twitter) Facebook Copy link Aired 17474days : 14hours : 54min : 50sec Monday, December 25, 1978 at 7:00 AM (Eastern Time) Synopsis This episode has no synopsis. Previous episode S10E20 Episode 20 Next episode S10E22 Episode 22 Data from TVmaze (CC BY-SA). Updated October 28, 2026, 19:31.