For their first sitcom, Kevin, Joe and Nick Jonas play Kevin, Joe and Nick Lucas—young idols like themselves. It would be too much to expect them to be cast as something exotic, like long-lost heirs to the Russian throne. The show has the silly sheen of a cartoon and fun little pop interludes, which is fine. Most young viewers won't care that Joe and Kevin seem trapped by all the self-referential cuteness—they're brightly, unnaturally arch. Nick, deadpan, comes off better.