After reading some of your suggestions, I think I know what the problem was. I had created some season passes of children's shows for my son prior to the cablecard installation. They had recorded some episodes. After the cablecard installation was done, I noticed that I no longer had the recording quality options on any channels. I took this to mean even the lower tier channels were in digital now. To make sure things recorded correctly, I canceled and recreated the season passes for those shows. The recordings from the original season passes must not be counted in the keep-at-most list for the current season passes. Once I deleted those old recordings, the number of episodes stayed where I wanted it. Thanks for the help.