Did you know each video KENO slot machine is equipped with an EPROM chip that tells the machine how much “coin in” to return over a randomly selected period of time? The chips carry a number between 82 and 98, which means they will pay out that amount in a win every single time. Sometimes you will see a “These Machines Return 98%” sign on the wall-this refers to the EPROM Chip, which the sign is telling you was programmed with a 98. What does this tell you? The house is not worried about paying out big jackpots-and they don’t limit the amount beyond this Epsom pre-programmed number. What they want are full casinos and busy video KENO machines.