CBS's organ-transplant procedural Three Rivers just earned its highest ratings yet, jumping 11% since last week's showing. The problem? The network has to decide whether to order more episodes of the struggling, often painfully bad show quickly in order to avoid expensive production stoppage. Movieline's advice? Dump it. Law and Order: Criminal Intent satisfies the incident-investigation-resolution formula better, and there are fewer high-tech touchscreen monitors that look swiped from an intimately lit version of the Enterprise. [THR]