I have a Yamaha HTR-6290 that does video up-conversion, a Motorola DVR (DCT 6412), and a Sony KD-34XS955 HDTV. This might be a stupid question but I have not been able to figure out an easy, direct answer
There is an HDMI connection going from the Yamaha to the TV (PS3 is currently the only HDMI source feeding into the AVR). The DVR is hooked up to the Yamaha via component, which I assume is being spit-shined and polished before being output to the TV. There is no question the SD picture is improved since we bought this AVR, but I'm not sure when/where/how the signals flow and take precedence. Maybe it is the HDMI out, or the up-conversion by the AVR, or maybe the TV is in the mix there somewhere, too. Dunno.
Should I switch the DVR to HDMI? Or is the up-conversion only a benefit if the signal is coming from component? I don't really want to spend the $$ on another HDMI cable if the picture is not going to see much improvement.
Thanks!

There is an HDMI connection going from the Yamaha to the TV (PS3 is currently the only HDMI source feeding into the AVR). The DVR is hooked up to the Yamaha via component, which I assume is being spit-shined and polished before being output to the TV. There is no question the SD picture is improved since we bought this AVR, but I'm not sure when/where/how the signals flow and take precedence. Maybe it is the HDMI out, or the up-conversion by the AVR, or maybe the TV is in the mix there somewhere, too. Dunno.
Should I switch the DVR to HDMI? Or is the up-conversion only a benefit if the signal is coming from component? I don't really want to spend the $$ on another HDMI cable if the picture is not going to see much improvement.
Thanks!