This is only true is the scaler in the HR20 is better than the one in your TV, which is not the case for the majority of the mid to higher end HDTV's out there (e.g. Panny, Pio, Samsung, Sharp, Sony, etc.) The video scaler / processor in the vast majority of 1080P sets currently on the market is superior to what is in the HR20. In the end, each end use needs to decide if the PQ improvement is worth the channel switching lag that comes with Native on. For my set up, I use native on for my Pio, Panny, and Sharp sets as there is a noticeable PQ improvement in letting the sets do the scaling. I use native off for my Vizio as I do not notice a pq difference.