Originally Posted by seascape
Is there another way to upconvert SDTV cable to any of the Hi-Def resolutions like the PS3 does for standard DVD's?
Most newer AV receivers can upconvert, some better than others.
All HDTVs upconvert, They have to -- they can only display at their native resolutions, so they must upconvert signals of lower resolution in order to display them full-screen.
Many standalone scalers upconvert video, and of course there are dedicated HT scalers that are designed for this job.
I also suggest that you make sure you're not expecting too much. SD cable generally looks like crap, and upscaled crap is still crap. Upscaling does not change the amount of video data that exists in the original signal, nor does it do anything to defects in the analog signal (snow, noise, ghosting, etc.) except make them easier to see.
Look around for test reports on your TV, and see how it did in the tests for scaling SD sources. If it did well, you may already have the best you're going to get. Remember that an anamorphic SD DVD has more video data and less artifacting than an SD TV signal, so an upscaled DVD will look considerably better than upscaled TV generally will.