On Friday night's Late Show, Stephen Colbert brushed up on his ability to discuss a topic unlikely to form the foundation of talk-show conversation: Curling.

Colbert's six-minute monologue about the sport stemmed from a story by CBC Manitoba's Cameron MacIntosh on the curling community's reaction to high-tech brooms.

But before zeroing in on Manitoba reaction, Colbert guided the audience through "the complexities of the game."

"One person throws a rock across the ice while two others rub brooms in front of it. And you're all caught up," he says before the audience bursts out laughing.

He leads into the video of CBC's Wendy Mesley introducing MacIntosh's story with a warning for "sensitive" members of the audience.

"You are about to see graphic depictions of Canadian news," Colbert said.