If the actors felt that something was untrue to their character or a mode of delivery didn't work, they were free to change it, provided they still hit the vital plot points.
This freedom was complemented by filming without rehearsal and without extensive blocking.
For example, Jason Street, the character whose promising football career is ended by a spinal injury in the pilot, was inspired by a local event.
David Edwards, a football player from San Antonio’s Madison High, was paralyzed during a November 2003 game.
Produced by NBCUniversal, Friday Night Lights premiered on October 3, 2006, and aired for two seasons on NBC.