Brea Avenue studios of KCOP-TV. Taping returned to CBS Television City for the 1990–91 version. The 2017–19 version of the show taped at Sony Pictures Studios in Culver City, California. Versions 1971: KTLA A tryout series aired locally on Los Angeles' KTLA for about three months and was hosted by Jack Barry. The rules were similar to the 1972–86 versions with the following changes: Three contestants competed in each game, with the champion spinning first to begin the game. Spinning three different categories and answering a question in any of the three categories was worth $25, while pairs were worth $50 and triples were worth $100. $250 was the goal to win, with an equal number of turns for each contestant. A three-joker spin resulted in an automatic win with a correct response to a question from any of the five categories in play. In the event of a tie, play continued until one was ahead after each round. The bonus round was similar to that of the Ludden pilots but had more elaborate prizes. Highlights of this version were shown during promos of the eventual series, which began production on CBS in 1972. 1972–75 For the first two weeks, triples were worth $150 and a three-joker spin resulted in an automatic win for a contestant without having to answer a question. From the premiere until around May 1974, the champion went first in each round; afterwards, the challenger did. Bonus Round The bonus round went through a few different iterations: Prize Round #1: The wheels were loaded with various prizes. The champion spun once and could either keep the prizes that came up, or decline them in favor of a second spin; in the latter case, they automatically received the prizes from that spin. Some prizes were marked with circles; if three circled prizes came up in a single spin, the contestant won a car in addition to those items. This format was only used on the first two episodes. Prize Round #2: Beginning with the third aired episode, the circles were eliminated and the car was added to the prize wheels, in addition to other high-value items such as boats and trips. This format lasted through the second week. Jokers and Devils: Beginning with the third week, the wheels contained only jokers and devils (see above for description). The contestant took up to three spins, receiving a prize