Greek3005_1 ABC Family has renewed hourlong "Greek" for a fourth season, ordering another 10 episodes of the college-set series.

The renewal will make "Greek" the cabler's longest-running series.

Airing at 10 p.m. Mondays as part of the cabler's three-hour block of original programming, the show has seen a 22% audience increase in the 18-34 demo.

The third-season finale is scheduled for March 29.

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