:up:upIn my experience no. It passes through the feed at the native rez, but it slows down the channel change time considerably.
I would just pick the setting that looks best to you (720p/1080i) and leave it at that
The picture is noticeably better on native for me. Channel change time is not an issue if your not a surfer. For me the conversion is better suited to be done by my TV rather than the D* box. I'm pretty sure the chips in my TV are better than the one sin the D* box.