![The Big Bang Theory on Twitter: "Penny and Leonard's Halloween party gets extra spooky when the pair clash over the memory of their first kiss. Stream the latest episode of The #BigBangTheory The Big Bang Theory on Twitter: "Penny and Leonard's Halloween party gets extra spooky when the pair clash over the memory of their first kiss. Stream the latest episode of The #BigBangTheory](https://pbs.twimg.com/media/DqT_oueXQAI4slR.jpg)
The Big Bang Theory on Twitter: "Penny and Leonard's Halloween party gets extra spooky when the pair clash over the memory of their first kiss. Stream the latest episode of The #BigBangTheory
![The Big Bang Theory': Kaley Cuoco shares then and now photos of Halloween episodes with Johnny Galecki | MEAWW The Big Bang Theory': Kaley Cuoco shares then and now photos of Halloween episodes with Johnny Galecki | MEAWW](https://dab57h0r8ahff.cloudfront.net/26061/uploads/96ebd3db-5787-4b66-8bda-ccb9c8b4253c_800_420.png)
The Big Bang Theory': Kaley Cuoco shares then and now photos of Halloween episodes with Johnny Galecki | MEAWW
![The Big Bang Theory's Kaley Cuoco celebrates final Halloween episode with throwback snap | Metro News The Big Bang Theory's Kaley Cuoco celebrates final Halloween episode with throwback snap | Metro News](https://metro.co.uk/wp-content/uploads/2018/10/big-bang-theory-halloween-main-a77a.jpg?quality=90&strip=all&crop=3px%2C110px%2C717px%2C376px&resize=1200%2C630)