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 discovers that Mary's been keeping a secret about his future. Also, Meemaw is furious when she learns Dale fired Georgie.