The Fox television network on Friday unveiled a midseason revamp to its prime-time schedule, including a move to Wednesday for the first night of its No. 1-rated singing contest "American Idol."

"Idol," has long aired the first of its two weekly shows on Tuesday with the second one day later. But the shift paves the way for Fox to launch a new block of Tuesday night comedies led by its hit musical show "Glee."

"Glee," about a group of teenagers in a high school singing club, will now be followed on Tuesdays by sitcom "Raising Hope" and a new relationship comedy, "Mixed Signals," Fox said in a statement.

"Idol," which is undergoing a major revamp this year with new judges Jennifer Lopez and Steven Tyler, will debut on Wednesday, January 19, and the second night in which contestants are eventually eliminated will air on Thursdays.

Fox plans to launch another new comedy, animated show "Bob's Burgers," which is billed as a program about a man, his family and their hamburger restaurant. It will begin airing on Sunday, January 9, amid Fox's block of animated shows that includes "The Simpsons."

Other new programs Fox will launch in January and February, which is roughly the middle-point of the 2010-2011 U.S. TV season, include police drama "The Chicago Code," and workplace comedy, "Breaking In."