NBC exec Scot Chastain has been elected co-chairman of the PromaxBDA board of directors.

Chastain, NBC’s senior VP of affiliate marketing and development, will serve alongside Joe Earley, chief operating officer of Fox Broadcasting Co. The two will lead the board of directors that oversees strategic planning of conferences, awards and member services for the TV marketing org.

At NBC, Chastain runs the bicoastal NBC Affiliate Marketing groups. He’s been on the PromaxBDA board since 2005, serving as treasurer in 2007-2008 and vice chair from 2009-2013.

Chastain will take over co-chair duties at the PromaxBDA confab in Gotham on June 10, when current co-chair, Warner Bros. TV Group marketing chief Lisa Gregorian, concludes her two-year term.