While CBS will not air the rebroadcast of the 9/7 episode this Saturday (9/11), and CBS may not air "Race" on Saturdays until the new season starts.
CBS will pre-empt the 9/14 rebroadcast on 9/18 with College Football (Univ. of Florida vs. Univ. of Tenn.).
The next Saturday is 9/25, the previous debut date of "Amazing Race 6". CBS may decide to re-air the TAR5 finale (original date: 9/21) on that day, or pre-empt it altogether, since "Big Brother 5" will also have ended by then.
So, for those who cannot catch the Tuesday episodes, you might want to fire up the VCR or other recording device so you won't miss any of the action, since the Saturday reruns *may* be over for the season.