Sorry for the bad title, couldn't find a way to summarize this properly. At times, when I turn on TV, the DVR is showing programming from 30 minutes ago on the already tuned station. For instance, I put on a basketball game last night and started watching it. After a bit I realized the game should be over by that time and paused the DVR and the marker was at the beginning of the 30 minute buffer. If I changed the channel and went back, then it was up to date. Anyone know why this happens?