Colbert Late Show Ratings

Ratings: Colbert's Late Show Debut Doubles Tonight Show Audience

CBS’ The Late Show With Stephen Colbert got off to an expectedly strong start on Tuesday, drawing 6.6 million total viewers and a 1.4 demo rating, easily topping all of late-night TV.

Colbert’s bow — which featured movie star guest George Clooney, a choppily edited Jeb Bush sitdown and a well-received Donald Trump/Oreos bit that nonetheless ran about a minute too long — also improved 131 and 180 percent on predecessor David Letterman’s most recent Late Show season opener.

The Late Late Show With James Corden led out of that with 1.9 mil and a 0.5.

Among Colbert’s time slot rivals, NBC’s The Tonight Show drew 2.9 mil and a 0.9 (matching its summer average) and ABC’s Jimmy Kimmel Live did 1.7 mil/0.4.

Because someone might ask/wonder: Jimmy Fallon’s Tonight Show debut drew 11.3 mil and a 3.8 (leading out of the Olympics in February 2014), while David Letterman’s Late Show swan song this past May did 13.8 mil/3.1.

TVLine readers gave Colbert’s Late Show debut an average grade of “B.”