Expanded Idol, Milestone Glee Fuel Supersized Fox Thursday in March

glee ali stroker kevin mchaleMake sure there’s a little extra room on your DVR come March 7.

That’s the date Fox is planning to expand its primetime lineup by a half hour to celebrate the announcement of the American Idol Season 12 finalists and the 500th musical performance on Glee, which will be a cover of the classic R&B hit/wedding reception favorite “Shout.”

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The night will kick off with the live results of America’s votes leading to the (hopefully awesome) roster for Idol‘s Season 12 finals (8:00-9:30 ET).

After that, a Glee episode entitled “Girls (and Boys) on Film” and featuring the milestone musical number from Animal House, will air from 9:30-10:30 ET. According to the network, the hour will revolve around the kids of New Directions performing songs from the movies, while in New York City, “Santana makes herself at home in the loft a little too quickly for Rachel and Kurt’s comfort.”