Survivor: Africa
During the finale (last episode), the producers made it look like the votes were being read at the Final Tribal Council right after the votes were cast. Jeff Probst went to get the voting urn and, when he returned, it appeared he had returned to the Tribal Council site to read the votes. However, he was actually on a CBS sound stage in Hollywood (with a live audience) that was made up to look like the site. This was told after he read the votes and said who won. The players were told to try to make themselves look like they were at the last Tribal Council and the audience was told to hold any cheering or clapping until after they said who won.