'Grey's Anatomy' musical details; 'True Blood' adds three female roles

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"Grey's Anatomy" is doing a musical episode, but don't expect it to be Shonda Rhimes' version of "Once More, with Feeling." "Nobody is going to be dancing and singing down the halls," Rhimes says. [ TV Guide]

"True Blood" has made Jessica Tuck a regular for its fourth season and has added three new female roles to its ever-expanding cast. Janina Gavankar ("The Gates") will be also be a regular, while Alexandra Breckenridge ("Life Unexpected") and Vedette Lim will have recurring parts. [ Deadline]

The ratings for "Sarah Palin's Alaska" took a tumble in the show's second week. The overall audience was down 40 percent, from 5 million to 3 million viewers, and its 18-49 ratings were off 44 percent. [ The Live Feed]

"The Big Bang Theory" co-star Simon Helberg is getting an early holiday bonus. Helberg has renegotiated his contract on the hit sitcom and will now make a six-figure salary per episode, up from a reported $25,000 per episode. [ Variety]

Striking crew members on "The Biggest Loser" have reached a settlement with the show's producers that will allow the crew to unionize under the International Alliance of Theatrical Stage Employees. The strike lasted two weeks. [ Deadline]

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Photo credit: ABC