Generally CRT HDTV (especially at 53") does not benefit as much from upscaling, but you can only find out if you like it or not by trying it out. Go to BB and get the $65 Philips 5982 and a HDMI->DVI cable to try 1080i and see how it looks to you (assuming your HDTV is HDCP compliant via DVI). Take it back if you don't like it.