unfabulous

The Jonas Brothers ... Jamie-Lynn Spears ... Miley Cyrus ... find out where they rank on our list.

Once upon a time, it was possible for a TV child star to get by on an impish smile and cute catchphrase.

Today's crop of kiddie performers don't have it so easy; they need to be double or triple threats who not only head up their own shows and/or TV movies, but sing, dance, star on the big screen, sell out concerts and launch clothing lines (despite some occasional personal missteps).

Here we count down the 20 hottest faves of the teen and tween pack.

• At 7, CBS has a new 60 Minutes, then the season finale of Survivor and the reunion show.
• ABC has a new America's Funniest Home Videos at 7, followed by a new Extreme Makeover.
• NBC has a new Football Night in America, then the Redskins/Giants game.
• There's a new CW Now on The CW at 7.
• Also at 7: Lifetime has the holiday movies Christmas at Water's Edge and A Diva's Christmas Carol.
• At 8, FOX has a new episode of The Simpsons, then a new King of the Hill.
• Nickelodeon has a new Unfabulous at 8.
• BBC America has two Eddie Izzard standup specials starting at 8.
• At 8:30, HGTV has White House Christmas 2007.
• At 9, Nickelodeon has two Christmas episodes of Home Improvement, followed by two Christmas episodes of George Lopez.
• HBO has the series finale of Extras at 9.
• Showtime has a new Dexter at 9.
• At 9:30, FOX has a new American Dad.
• At midnight, Cartoon Network has a new Xavier: Renegade Angel, then a new Tim and Eric's Awesome Show, Great Job.

Check your local TV listings for more.