When I use the Active button on my HR23 and pick a channel that I want to watch, it always defaults to the SD version of the channel instead of the HD version. In my setup prefs. I have the receover set to filter out SD channels if a HD version is available. I can't figgure out why this happens. My R20 receiver always picks up the HD channel when goint through the active button, but not the HR23. Does anyone have an answer for this problem?