I use Windows Media Center to watch TV.  My computer has a TV Tuner and WMC automatically searches for and records my shows to an external 1 TB hard drive.  It's supposed to automatically delete old shows to make room for new ones.

The drive was almost completely full, nearly a full terabyte of TV shows had been recorded, so I went through the list of old shows to manually delete stuff.

I discovered that WMC had never deleted any of the Law & Order episodes that it had recorded.  I had over a years worth of episodes filling up the drive!  It had recorded not just the new episodes on NBC, but also the syndicated reruns on the local stations.

I started going through and deleting old episodes, which freed up almost half the drive.   Nearly half a terabyte of Law & Order.  Yikes!  And I'm not really that big of a fan of the show.