How William 'The Refrigerator' Perry started the Super Bowl prop bet craze
Super Bowl 56: William Perry and the prop that started a betting craze
If it's Super Bowl related, you can bet on it
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Super Bowl Prop Bets As Popular As Their Inspiration: Refrigerator Perry
Why Do We Have All The Fun Super Bowl Prop Bets? Thank Chicago Bears William Refrigerator Perry!
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Super Bowl betting - The unlikely play that can swing millions of dollars - ESPN
Why Do We Have All The Fun Super Bowl Prop Bets? Thank Chicago Bears William Refrigerator Perry!
How William Perry's TD Rumble 35 Years Ago Sparked Super Bowl Prop Betting