At the conclusion of last night's Race, a CBS promo finally confirmed TV's worst-kept secret: that Survivor lovebirds Rob Mariano and Ambuh Brkich will be competing in Amazing Race 7, debuting in three weeks. The network, meanwhile, announced today that the eighth edition will be an all-family affair, with teams made up of four relatives as opposed to the normal two-person combo. Casting will begin immediately, so start running!