Public awareness campaigns were one of the ways in which dot-coms sought to grow their customer base. These included television ads, print ads, and targeting of professional sporting events. Many dot-coms named themselves with onomatopoeic nonsense words that they hoped would be memorable and not easily confused with a competitor. Super Bowl XXXIV in January 2000 featured seventeen dot-com companies that each paid over two million dollars for a thirty-second spot. By contrast, in January 2001, just three dot-coms bought advertising spots during Super Bowl XXXV. In a similar vein, CBS-backed iWon.com gave away ten million dollars to a lucky contestant on an April 15, 2000, half-hour primetime special that was broadcast on CBS.