Win $1000 a Day with O&A

From OAPedia.com

Win $1000 a Day with O&A was a radio contest Opie and Anthony held where listeners had to hear a specific sound clip between 7 AM and 7:30 AM and be the 10th caller in order to win $1000. The contest was often plagued by idiot callers, who called into the show when O&A were merely explaining the rules of the contest, or called in when the sound clip hadn't even been played. There were also a number of prize pigs who called in hoping to win money that weren't even fans of the show.