Geek week!

Did I miss the memo? It seems to be sf actor guest appearance week on network television. First we had Michael Dorn on Without a Trace at the end of last week, then we had Nicholas Brendon over on Criminal Minds last night, then tonight we have Seth Green and John Billingsley on Grey's Anatomy, then tomorrow night it's Wil Wheaton on Numb3rs. Thanksgiving week is geek week?? Yay!