If you're going to try to sneak a Batman reference into a Dark Knight news segment, you'd better know what you're talking about or Weekend Today anchor Jenna Wolfe will call you out.

A TVNewser reader tipped us to yesterday morning, when CNBC anchor Erin Burnett, in as newsreader, threw in a, "Holy smoke, Batman," while describing the strong second weekend numbers of the new movie.

"It's 'Holy Smoke Batman,' not 'Holy Smoke Batman.' Come on Erin!" said Wolfe, laughing. "I'm just saying, I'm definitely not the voice of reason here, I hate to correct people, but when you make a mistake that big, Erin..."

Maybe it's some Today show initiation — this weekend marked Burnett's first as newsreader on the program. Her new deal with NBC, including Weekend Today appearances, was announced earlier this month.