I am a huge fan of television online. Kudos to NBC for putting six episodes of Andy Barker P.I. online. I haven't seen the show yet, but the reviews I've seen are all quite positive.
I am still harboring a slight grudge that it's taking over 30 Rock's timeslot when I've finally discovered that show, but if I had to pick replacement programming or reruns, I would choose the replacement. I do advocate, however, for a reality-style, cable-style year-round schedule that doesn't include reruns or fill-in programs.