The bandwidth of the component video chain is the critical spec. To pass a progressive signal with no loss requires circuitry that is flat to 31.5 kHz. In practice, the requirements are probably not quite that stringent as there is little if any info on a typical DVD at the highest end of the band.
As I recall, the component video signal of the Denon AVR-3300 was spec'ed to 28 kHz and most regarded that signal as being acceptable for progressive scan.
This info is now listed in the Crutchfield catalogs in the individual descriptions but I'm not sure about the website. They are kinda slow to change anything on their website once it's up.
The low end Denons are 27MHz. The Denon high ends are 50MHz. The H-K's are 30MHz. The Onk's are 50MHz. The Yammy's range from 30-60MHz. Kenwoods are anywhere from 10-40MHz. JVC's are 35MHz and non-Elite Pioneers are 28MHz.
Without sufficient bandwidth you may as well run a direct connection.