By Lynette Rice
Updated October 23, 2007 at 12:00 PM EDT

The networks are in the thick of the fall 2008 drama buying season and some early trends have emerged.

Girls behind bars are hot! 20th Century Fox TV is developing a script for its sister network that would introduce a female character on Prison Break who would then get sent to the slammer in a spinoff from Break writers Zack Estrin and Matt Olmstead. And NBC has bought a script about girl convicts from Nip/Tuck’s Ryan Murphy. It’s titled Orange is the New Black.

Networks are Tuning In CBS may have canned Viva Laughlin after two episodes but the nets aren’t ready to give up on music-themed dramas just yet. ABC has two such scripts in the works: Hairspray’s Adam Shankman is prepping Harmony, about a musical town, while The OC’s McG has the Fame-inspired Limelight. And over at NBC, Dreamgirls’ Bill Condon is fine-tuning a ditty-heavy script about young people in the Big Apple.

Hear Ye, Hear Ye: Fantasy is the New Reality CBS is developing the knights and castles drama The Kingdom from uber-producer Barry Sonnenfeld, and ABC has bought a script called Legends, a retelling of the King Arthur mythology, from Mandeville Prods.