We watch CSI on Spike TV all the time! Clare has set up the DVR to get it every night, so we've seen most of them as well; some twice! We really enjoy that show. I've only seen CSI Miami once, and that was the pilot that involved the Las Vegas folks. I've only seen CSI NY once, too. They were pretty good, but the chemistry on the original is just better.
I'd never really had a chance to watch the show until Spike TV started playing them.