TAR meaning in Community ?

The Amazing Race is an adventure reality game show franchise in which teams of two people race around the world in competition with other teams. The Race is split into legs, with teams tasked to deduce clues, navigate themselves in foreign areas, interact with locals, and perform physical and mental challenges that often highlight aspects of a location's culture, history, or economy. Over the course of the Race, teams travel by airplanes, helicopters, trucks, bicycles, taxicabs, cars, trains, buses, boats and by foot. Teams are progressively eliminated at the end of most legs for being the last to arrive at designated Pit Stops, until only three remain. The first team to arrive at the finish line is awarded the grand prize.

Created by Elise Doganieri and Bertram van Munster, the original series has aired in the United States since 2001 and has earned thirteen Primetime Emmy Awards, ten of which being for the award for "Outstanding Reality-Competition Program". Emmy-award-winning New Zealand television personality Phil Keoghan has been the host of the U.S. version of the show since its inception. The show has branched out to include a number of international versions following a similar format.