The new seasons are to be broadcast in the 2010-2011 television season.
This will mark the 21st and 22nd editions of "Survivor," making it broadcast television's longest-running reality competition series, CBS said.
The show's 20th edition, "Survivor: Heroes vs. Villains," is to premiere with a special two-hour episode Feb. 11.
"The Amazing Race 16" is to debut Feb. 14.
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