The official word: NBC issued pickups for three returning alternative series in 2011-12 in "The Biggest Loser," "Who Do You Think You Are?" and the singing competition series "The Sing-Off."
The announcement was made today by Bob Greenblatt, Chairman, NBC Entertainment.
"Alternative series such as these three bona fide hits are important not only to their loyal audiences but also as strong components of the NBC schedule," said Greenblatt. “They are each unique, attention-getting shows with terrific producing and talent auspices, and we're proud to be associated with them."