This show is actually in season 4 now on CBS. This episode was taped during an experimental stage of hour-long episodes, and was part of the third anniversary special week. After this week, the 1/2 shows returned until Nov 3rd, 1975, and the show permanently became one hour long. Features a 3rd Barkers Beauty, Barbara, who was a special model just for this week. Here is also the introduction of what evolved into the Big Wheel, used long after to determine who would advance to the Showcase round.