Since 90% of my flying is out of DFW on MD 80s or commuter jets, having any kind of IFE is a luxury in my book.
There have been a couple of occasions where I was on a flight with IFE often enough to see the same episode of 'Everybody Loves Raymond' multiple times before they got an updated tape with a different episode. But that hasn't happened since AA decided that they don't have to have IFE entertainment out of DFW because they are the only game in town.