Sesame Street / Season 7 S7E78 Snuffy leans against Big Bird's door; Biff and Sully build a subway tunnel (873) Sesame Street Netflix Share WhatsApp Telegram X (Twitter) Facebook Copy link Aired 18487days : 13hours : 58min : 04sec Wednesday, March 17, 1976 at 7:00 AM (Eastern Time) Synopsis This episode has no synopsis. Previous episode S7E77 Buffy stays with Maria (872) Next episode S7E79 Snuffy goes sleepwalking (874) Data from TVmaze (CC BY-SA). Updated October 28, 2026, 19:31.