![Here's what happened in The Big Bang Theory's bittersweet finale that fans are praising as "perfect" Here's what happened in The Big Bang Theory's bittersweet finale that fans are praising as "perfect"](https://hips.hearstapps.com/hmg-prod/images/big-bang-theory-finale-2-jpg-1558056123.jpg)
Here's what happened in The Big Bang Theory's bittersweet finale that fans are praising as "perfect"
![Sarah Michelle Gellar Guest Stars in 'Big Bang Theory' Series Finale: How This Surprise Happened! (Exclusive) | Entertainment Tonight Sarah Michelle Gellar Guest Stars in 'Big Bang Theory' Series Finale: How This Surprise Happened! (Exclusive) | Entertainment Tonight](https://www.etonline.com/sites/default/files/images/2019-05/115006_0104b.jpg)
Sarah Michelle Gellar Guest Stars in 'Big Bang Theory' Series Finale: How This Surprise Happened! (Exclusive) | Entertainment Tonight
![The Big Bang Theory 200th episode: Every celebrity cameo, including Adam West and Sara Gilbert | The Independent | The Independent The Big Bang Theory 200th episode: Every celebrity cameo, including Adam West and Sara Gilbert | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2015/12/23/11/Big-Bang.jpg)
The Big Bang Theory 200th episode: Every celebrity cameo, including Adam West and Sara Gilbert | The Independent | The Independent
![Big Bang Theory' Cast Emotionally Celebrates Series Finale With Touching Tributes and Throwback Pics | Entertainment Tonight Big Bang Theory' Cast Emotionally Celebrates Series Finale With Touching Tributes and Throwback Pics | Entertainment Tonight](https://www.etonline.com/sites/default/files/images/2019-05/the_big_bang_theory_cast_gettyimages-504562490_1280.jpg)
Big Bang Theory' Cast Emotionally Celebrates Series Finale With Touching Tributes and Throwback Pics | Entertainment Tonight
![The Big Bang Theory finale: Who did Sarah Michelle Gellar play? | TV & Radio | Showbiz & TV | Express.co.uk The Big Bang Theory finale: Who did Sarah Michelle Gellar play? | TV & Radio | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/20/590x/secondary/sarah-michelle-gellar-in-the-big-bang-theory-1873778.webp?r=1558084075250)
The Big Bang Theory finale: Who did Sarah Michelle Gellar play? | TV & Radio | Showbiz & TV | Express.co.uk
![The Big Bang Theory season 11 cameos: Mark Hamill to guest star for Amy and Sheldon's wedding | Radio Times The Big Bang Theory season 11 cameos: Mark Hamill to guest star for Amy and Sheldon's wedding | Radio Times](https://images.immediate.co.uk/production/volatile/sites/3/2017/12/GettyImages-891204850-5b98654.jpg)
The Big Bang Theory season 11 cameos: Mark Hamill to guest star for Amy and Sheldon's wedding | Radio Times
![The Big Bang Theory: Fans spot MAJOR error involving Sheldon and a celebrity cameo | TV & Radio | Showbiz & TV | Express.co.uk The Big Bang Theory: Fans spot MAJOR error involving Sheldon and a celebrity cameo | TV & Radio | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/20/590x/Sheldon-Cooper-1133277.jpg?r=1559109692367)