Sheldon and Leonard get invited to a party at Wil Wheaton's house, and Howard gets an out-of-this-world opportunity.
Sheldon and Leonard get invited to a party at Wil Wheaton's house, and Howard gets an out-of-this-world opportunity.
Guest Cast
![Carol Ann Susi](https://static.tvmaze.com/uploads/images/medium_portrait/4/10334.jpg)
Carol Ann Susi
voices Mrs. WolowitzCast Appearances
![Penny](https://static.tvmaze.com/uploads/images/medium_portrait/175/439563.jpg)
Kaley Cuoco
as PennyEpisode Discussion
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