After 12 seasons, The Big Bang Theory is coming to an end. 1 / 8
CBS has announced a special retrospective episode will follow the series finale. 2 / 8
The 30-minute special will be hosted by Johnny Galecki and Kaley Cuoco. 3 / 8
Unraveling the Mystery: A Big Bang Farewell will feature set visits and interviews. 4 / 8
The special will air at 9:30, following the Season 2 finale of Young Sheldon. 5 / 8
The fan-favorite sitcom only has 4 episodes left to air. 6 / 8
Will you be tuning into the finale? 7 / 8
The Big Bang Theory series finale will air May 16 on CBS. 8 / 8