ABC has renewed a cornerstone of its Sunday night lineup for the past three years. 

The Sally Field/Calista Flockhart drama "Brothers & Sisters" has been renewed for a fifth
season by ABC, according to The Hollywood Reporter.

In the new season, Rob Lowe has already revealed that he will not be there, moving to NBC’s "Parks and Recreation," and Flockhart has asked for a lighter load, but the rest of the cast remains intact and will be on board for the 2010-11 season.