A few days ago Hunan TV had a contest where they awarded a succession of prizes to the person who had sent in by SMS the lowest unique number at various points during the program; the "votes" were cumulative, so we saw the winning number get bigger every time. For example, if seven people sent the number 1, two people sent the number two, one person sent 3, and 2 people sent 4, then the person who sent the number 3 won the prize. A very interesting mathematical problem.