NBC reality series lands star power

Sarah Jessica Parker, Susan Sarandon set for show

Sarah Jessica Parker and Susan Sarandon have been tapped to star in NBC's genealogy reality series "Who Do You Think You Are?"

The show's exec producer Lisa Kudrow also will be featured on "Think," based on the hit BBC documentary series, which explores celebrities' ancestral history.

The six-episode series, from Kudrow's Is or Isn't Entertainment and U.K.'s Wall to Wall, will premiere April 20 and run in the 8 p.m. Monday slot after the season finale of "Chuck."

The project, which has been in the works at NBC for more than a year, marks one of the first major greenlight decisions for the network's new reality chief Paul Telegdy, a former BBC exec.

"No other program gives this unique glimpse into the personal lives of celebrities or takes viewers on a quantum leap through history in such an entertaining way," he said.

"Think" is exec produced by the original show's creator Alex Graham and Lucy Carter from Wall to Wall and Kudrow, Dan Bucatinsky and Don Roos from Is or Isn't Entertainment.

"This show personalizes history and turns it into a gripping narrative," Kudrow said. "The most striking thing about the show is the realization of how connected we all are."