A "Three Rivers" stumble

Since CBS sent the pilot of "Three Rivers" to media outlets earlier in the summer, things have changed.

First, there was the recasting of one character (the role played by Juliette Binoche is now played by Alfre Woodard) -- a fine, harmless change.

But the problem the show faces now is the switch-up of episodes. The one you'll see premiering at 9 p.m. today on CBS is completely new. That in itself is not a problem. The problem lies in the lack of backstory audiences will have about a key character: Ryan Abbott (Christopher J. Hanke) is a newbie to the organ donation team. In fact, as the assistant to the transplant coordinator, he's had zero experience in medicine. Mostly, he's been a radio DJ and reporter. He's clearly out of his element.

"Three Rivers": Making a great case for organ donation

The show:

"Three Rivers," debuting Oct. 4 on CBS

The social issue:

Organ donation

The set-up:

"Three Rivers" follows a Pittsburgh organ transplant team as they work to save lives by finding organ donors to match their patients' needs. The title refers to the city's three rivers as well as the three converging storylines in each episode (transplant docs, donor recipients and donor families).