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The Big Bang Theory: Season 12; Sean Astin and Kal Penn to Guest - canceled + renewed TV shows - TV Series Finale
![Kal Penn on Twitter: "For years, people have been telling me I'm really funny on The Big Bang Theory. This Thursday, I'll finally be on an episode! Tune in 🙌🏽 https://t.co/rC78S9VWJu" / Kal Penn on Twitter: "For years, people have been telling me I'm really funny on The Big Bang Theory. This Thursday, I'll finally be on an episode! Tune in 🙌🏽 https://t.co/rC78S9VWJu" /](https://pbs.twimg.com/media/Dw5OEr_UcAAg3Qj.jpg)
Kal Penn on Twitter: "For years, people have been telling me I'm really funny on The Big Bang Theory. This Thursday, I'll finally be on an episode! Tune in 🙌🏽 https://t.co/rC78S9VWJu" /
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Big Bang Theory' Star Kunal Nayyar Shares a Pointed Moment With Kal Penn in Behind-the-Scenes Look (Photo)
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