‘Amazing Race,’ ‘Undercover Boss’ Renewed

Reality shows average around 12 million total viewers

CBS has renewed its Sunday night reality series, "The Amazing Race" and "Undercover Boss."

Seven-time Emmy winner "The Amazing Race," which averaged almost 12 million viewers this fall, will return for its 19th edition in 2011-12. The show is hosted by Phil Keoghan (left).

"Undercover Boss," which premiered last February, has averaged 12.3 million total viewers this season.