Young Sheldon recently finished its third season season on CBS. The season finale aired Thursday, April 30, 2020.
CBS has already renewed Young Sheldon for a fourth season to air in 2020/21.
Season 3, Episode 21 - A Secret Letter and a Lowly Disc of Processed MeatAired April 30, 2020 at 8:00/7:00c on CBS
Sheldon learns that Mary has been keeping a secret about his college future. Meanwhile, Meemaw is furious to learn that Dale fired Georgie.