Season finale dates for CBS

Here is a link to all the CBS primetime program season finales. Of most interest to me are Joan of Arcadia's finale on April 22nd (which could actually be its series finale as the show is in trouble of being renewed), Survivor: Palau's finale on May 15th (therefore, six more episodes - which also must mean that we won't have any of those annoying recap episodes this season) and The Amazing Race finale on May 10th (therefore, four more episodes - of which another one must be a non-elimination round since we are already down to 5 teams. I was wondering how the show would last until May sweeps until that stunt they pulled at the end of tonight's show).