The late Merv Griffin is still the undisputed King game shows. Merv Griffin created Jeopardy, Wheel of Fortune, Click and Merv Griffin's Crosswords to name a few. He also owned the Beverly Hilton Hotel and many other valuable pieces of real estate. In 1986 he cashed out of many of his real estate holdings for $260 million but then proceeded to buy up even more property, eventually earning a net worth of $1 billion! Without Merv Griffin, many of the names on this list would likely never have had careers, including Alex Trebek, Pat Sajak and Chuck Woolery.