Premise

The comedy legend's 44th annual fund-raiser for muscular-dystrophy research, telecast from Las Vegas with local tie-ins. Tom Bergeron, Jann Carl, Billy Gilman, Nancy O'Dell, Alison Sweeney and Ace Young are the cohosts, joined by youth ambassador Luke Christie. Performers include 3 Doors Down and Starship, as well as Gilman and Young. Also: profiles of families affected by muscular dystrophy.