CBS's fall medical drama "Three Rivers" returned to town to film a new scene yesterday for its Oct. 4 premiere episode.

The show is set at fictional Three Rivers Regional Medical Center, which in the show's universe is situated on the North Shore roughly between Heinz Field and PNC Park.

Producers recruited members of the Pittsburgh Rugby Club to play in a scene with series star Alex O'Loughlin.

Mr. O'Loughlin's character, Dr. Andy Yablonski, runs down the field in a scene that ends with a resentful rugby player shoving Yablonski and declaring, "You may work across the river now, but I know where you came from. Remember that!"

The character Yablonski grew up in Mount Washington and works as a transplant surgeon at Three Rivers Regional Medical Center.

This trip marked the actor's second time in Pittsburgh after filming the original "Rivers" pilot here in the spring.

"I want to spend more time on the South Side and up here," Mr. O'Loughlin said. "I've had all the obvious stuff like Primanti Brothers and all that stuff, which is disgusting and fun but you never want to do it more than once. I love the surrounding areas of the city. It's a beautiful part of the world."