CBS's "The Big Bang Theory," a nerdy sitcom following a day in the lives of two awkward physicists (Johnny Galecki, Jim Parsons), their dorky friends/colleagues (Simon Helberg, Kunal Nayar), and hot neighbor (Kaley Cuoco), will have a special guest star on their next episode airing tomorrow night, March 9, @ 8:00.
Summer Glau from "Terminator: The Sarah Connor Chronicles" will make an appearance as herself. She's also known to fans as River Tam from the short-lived "Firefly." Therefore, this chick is part of geek royalty.
Here's a peek of the upcoming episode . . .
[video courtesy of CBS]