CBS has announced The Amazing Race's fifteenth season will premiere with a special two-hour broadcast on Sunday, September 27 at 8PM ET/PT.

Beginning October 4, The Amazing Race will serve as the lead-in for Three Rivers, a new scripted drama that will air in the Sundays at 9PM ET/PT timeslot.

Last September, The Amazing Race continued its Annual Primetime Emmy Awards dominance when  it captured the Outstanding Reality-competition Program award for the sixth year in a row -- making it the only show to win the award since the Academy of Television Arts & Sciences first created the category in 2002.

The win raised The Amazing Race's Emmy award total to 11 since it was first eligible in 2002, however it represented the only win out of the six nominations the show had received for last year's awards.  Overall, The Amazing Race has received 26 nominations since it premiered in 2001.

In addition to The Amazing Race's fifteenth-season debut, CBS also announced Survivor: Samoa -- the nineteenth season of the long-running reality series -- will premiere on Thursday, September 17 at 8PM ET/PT.

As it has for the last eight years, Survivor's premiere will mark the debut of CBS' new fall schedule.  The rest of the network's schedule won't begin premiering until Monday, September 21, the official start of the 2009-2010 television season.