Nothing is definite yet, but word on the street is that the Big O is headed to “30 Rock” for fall sweeps...

I’m told Oprah is slated to appear in 30 Rock’s episode 302, which is tentatively set to air Nov. 6. According to reliable insiders, the initial plan (subject to change) is that she will be playing herself, with all of her scenes opposite Tina Fey’s fabulous Liz Lemon, and that her story would also play into a feud between Tracy Jordan and Jenna Maroney that will continue through several episodes.