• Gossip Girl: Don't want to wait until Monday to see Lady Gaga's guest gig on Gossip Girl's "Last Days of Disco Stick"? Press play above for a sneak peek of the showy pop star's big musical number.
• Curb Your Enthusiasm: As it turns out, super-Jew Larry David is 37 percent Native American, or so say the geneticists employed by the Lopez Tonight show.
• Private Practice: Grey's Anatomy and Private Practice boss Shonda Rhimes announced that Kate Walsh has joined Twitter, if you're into that kind of thing. You can follow her at @k8_walsh.
• Charlie's New Angels: This sounds strangely fun. Sarah Connor Chronicles boss Josh Friedman and multihyphenate cutie Drew Barrymore are collaborating on a possible new Charlie's Angels series for ABC. Got any sexy casting ideas?
• Caprica: The Battlestar Galactica spinoff Caprica has been cut back by one hour to save money. The series, which stars Eric Stoltz and Esai Morales, premieres Jan. 22 on Syfy.
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Have a burning question about your favorite TV series? Email tvdiva@eonline.com for answers! Plus, follow Kristin Dos Santos on Twitter @kristinalert.