Sesame Street / Season 52 S52E08 The Letter M Mystery Sesame Street Netflix Share WhatsApp Telegram X (Twitter) Facebook Copy link Aired 1763days : 20hours : 58min : 23sec Thursday, December 30, 2021 The exact release time has not been announced. Synopsis This episode has no synopsis. Previous episode S52E07 The Grouch Band Next episode S52E09 Hike Pirates Data from TVmaze (CC BY-SA). Updated October 28, 2026, 19:31.