Stephen Colbert’s been beating Jimmy Fallon in the overall late-night ratings race — and we hear Colbert now wants to steal Fallon’s younger viewers, too.

Colbert’s comeback “Late Show” has topped Fallon’s “Tonight Show” for seven weeks straight, but has been behind in TV’s coveted 18-49 demographic.

A source says of riding-high Colbert, “He loves the headlines. He went from underdog to beating Fallon, so of course he’s enjoying it. He’s now so desperate to take over the ‘key demographic’ that he brought back an old character — his [Comedy Central] ‘conservative pundit colleague’ — to compete.”

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“America’s Got Talent” is about to get fierce.

The NBC show has crowned Tyra Banks as its new emcee for its upcoming twelfth season.

The former “America’s Next Top Model” host will be replacing Nick Cannon following his controversial resignation last month, judge Howie Mandel announced on Twitter Sunday night.

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Thursday night, CBS aired the first new episode of freshman drama “Training Day” since the untimely death of series star Bill Paxton last Saturday at the age of 61. The episode opened with a dedication to the veteran actor in his final TV role.

Paxton had completed work in December on the 13-episode first season of the midseason CBS drama, a reboot of Antoine Fuqua’s 2001 film. There are eight more unaired episodes after Thursday’s.

“Training Day” is set 15 years after the events in the movie, and centers on an idealistic young police officer, Kyle Craig (Justin Cornwell), who is appointed to an elite squad of the LAPD where he is partnered with a seasoned, morally ambiguous detective Frank Roarke (Paxton).

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