“American Idol” is moving to Thursdays next year as part of a major lineup shakeup announced Friday by Fox.

The ratings giant has been solidly encamped on Tuesday and Wednesday nights for a decade. But with “Glee” becoming a rock in the Tuesday night lineup, along with the promising new sitcom “Raising Hope,” “Idol” will shift forward and air its performance show on Wednesdays and the results show on the more lucrative — and competitive — Thursday nights. That’ll put it head-to-head against NBC’s comedy block and CBS’s “Big Bang Theory.”

The Wednesday “Idol” installments will air for two hours, from 8-10 p.m., between February and April, then pare back to 90 minutes for the end of the season. The Thursday episodes will air at 8 p.m. and will all be one hour, which will push “Bones” back to 9 p.m.

That’s bad news for “Fringe” fans; the fantastic but under-watched sci-fi drama will be bumped from Thursdays to the no-man’s land that is Friday night. That can’t be encouraging news for its continued survival.

“Idol” premieres Jan. 19 with a two-hour episode.