‘The Big Bang Theory’ series finale recap

The Big Bang Theory cast in series finale

In its 12 seasons, The Big Bang Theory didn’t often start with “previously on” openings, but in the series finale of the CBS show, which aired Thursday night, it started with possibly the longest “previously on” in TV history. It walked the audience through clips from the past 11 years: Penny (Kaley Cuoco) meeting her new neighbors, Leonard (Johnny Galecki) and Sheldon (Jim Parsons); Penny and Leonard falling in love; Sheldon knocking on countless doors (three times, of course); “Soft Kitty”; everyone falling in love; three weddings and two babies. It was a bittersweet walk down memory lane as the show began its final hour.

Click here to read the full recap.