TVLine Items: 30 Rock Jilted By Clinton, Xtina Is a Voice Coach, and Other TV News to Know

What gives, Mr. President?

Tina Fey reportedly had big plans for 30 Rock‘s 100th episode — plans involving no less than Bill Clinton — but unfortunately they were immediately rebuffed. “The request was made and immediately denied without asking him,” Clinton’s rep tells the New York Post. But no harm, no foul — the landmark episode is set to air April 20, sans the ex-POTUS.

Ready for more of today’s TV dish? Well…

• NBC’s Idol rival The Voice has tapped Christina Aguilera as its third musical coach. The popstar joins the previously announced Adam Levine (Maroon 5) and “Forget You”‘s Cee Lo Green. Do we sense an image rehabilitation at hand?

• It’s a Welcome Back, Kotter reunion! Having repeatedly fended off overtures to do so in the past, Vinnie Barbarino John Travolta will reunite with his fellow Sweathogs — to mark the series’ 35th anniversary at the TV Land Awards in April.

• Angela Bassett has landed the lead role of a Special Agent in the NBC pilot Identity, which Deadline describes as an “action procedural.”

• Sarah Paulson (Studio 60 on the Sunset Strip) is trying her hand at comedy again, says Deadline, booking a role on NBC’s untitled Kari Lizer workplace-comedy pilot.

Which Line Items have you talking today?