David Letterman will celebrate the 10 year anniversary of his move to CBS on tonight's Late Show. According toThe Hollywood Reporter, a special Top 10 list will count down the good things about his decade at the Eye. At No. 8, "No matter how many years you're at the network, you'll never be as old as the 60 Minutes guys." An hourlong prime-time special is in the works for February to commemorate Letterman's 22 years in the business.