Young Sheldon 3x21 "A Secret Letter and a Lowly Disc of Processed Meat" Season 3 Episode 21 Promo trailer HD (Season Finale) - Sheldon discovers that Mary's been keeping a secret about his future.
Also, Meemaw is furious when she learns Dale fired Georgie, on YOUNG SHELDON, Thursday, April 30th on CBS.
Young Sheldon 3x21 Promo/Preview "A Secret Letter and a Lowly Disc of Processed Meat" (Season Finale) Young Sheldon Season 3 Episode 21 Promo Young Sheldon Season 3 Season Finale Promo Young Sheldon 3x21 Promo "A Secret Letter and a Lowly Disc of Processed Meat" (HD) Season Finale #YoungSheldon » Watch Young Sheldon Thursdays at 8:00pm on CBS » Starring: Iain Armitage, Zoe Perry, Lance Barber, Raegan Revord, Montana Jordan, Jim Parsons