For six weeks (1½ months) during the summer of 1986, CBS produced a special prime time edition of The Price is Right in an attempt to stop ratings winner NBC and their successful Thursday night shows The Cosby Show and Family Ties, but with no success. In addition, host Bob Barker and announcer Rod Roddy wore tuxedos for these specials and occasionally, the models (Dian Parkinson, Janice Pennington and Holly Hallstrom) wore evening dresses for these specials too. It was this very special that premiered several things that would be used for the daytime show, like the following pricing game rule changes: