While I was watching GREY'S ANATOMY, I had the DVR recording CSI which I watched at 10 p.m. Lots of fairly famous folks in this week's episode: Judd Nelson, John Michael Higgins, Kenneth Johnson. I had seen the episode, but I didn't remember the solution of the crime.
There were also several looks passed back and forth between Grisson and Sarah which made the season finale not so much of a jaw-dropper any more. I had forgotten all this stuff had happened.