From USA Today:

Last week, a wet Walt appeared again on Lost. Before Shannon was shot, he spoke unintelligibly to her. But when Walt's words are played backwards, is he saying" "They're coming, and they're close"? Also last week, in the hospital where Shannon's dad died, you see Jack in his scrubs. Was Jack's future wife - who was in the hospital after an auto accident - the driver of the SUV that killed him?

Tonight's episode is from 9:00 to 10:05; need to make sure the TIVOs and other PVRs are setup right.