30 Rock rarely films at 30 Rock—typically they're at Silvercup Studios in Queens—but we hear today they'll be at the Midtown location (possibly with Susan Sarandon) from 10 a.m. through 8 p.m. for an all-day shoot. Or an all-day Liz Lemon party, whichever way you want to think of it.

Elsewhere, New Year’s Eve, the unnecessary follow-up to Valentine’s Day, will be filming at and around Radio City Music Hall. And Boardwalk Empire is at the Brooklyn Navy yard; last week they were bringing the old Gage & Tollner back to life, but only the interior (as shown by this exterior photo taken during the shoot).