AVS Forum Special Member
Join Date: Nov 2013
Location: Salem, Oregon, United States, Earth
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This won't help the DVDO Edge VP question, but might help the PQ: Have you tried setting the DVR to output "Native" to see if the TV does a better job at rescaling and deinterlacing than the DVR? Cable company equipment doesn't have the best reputation of having the best rescalers.
The down side to setting the DVR to output "Native" (or whatever that specific model calls it when it sends out on the HDMI port the video format the TV signal was received in) is that there is a delay when changing channels between stations of different video formats, a delay that isn't there when the DVR HDMI output is locked to a specific video format.
In my case, since the TV connected to the DVR isn't natively 720p (1280x720) but actually 1366x768, I discovered that having just the TV do the rescaling (DVR HDMI Video Format: Native) produced better picture quality than having the signal double-rescaled (first by the DVR, then by the TV to convert that to the TV Native Format). I did try the DVR set to output 720p, but the 1080i channels didn't look as good, and likewise setting the DVR output to 1080i or 1080p caused the 720p channels to lose a bit of their PQ, and the only way I could get the SD channels to look halfway decent was to have SD channels leave the DVR at 480. (I ended up setting the DVR to NOT output 480i, so 480i SD stations are sent to the HDMI port at 480p because that specific TV forgets that I had turned off overscan when it gets a 480i signal on the HDMI port, but it remembers it and switches back to no overscan when it gets a 720p or 1080i channel.)
So, the moral of the story is to make sure that if you do decide to test whether it is the TV or the DVR that does a better job of rescaling is to test with several channels, and make sure that your testing includes 720p channels as well as 1080i channels, and if you ever watch SD channels, be sure to test them, too. (Yes, I am aware that this is "HDTV > HDTV Recorders", but some content, particularly older TV shows and older, lesser-known movies seem available only on SD subchannels like MeTV, THiS, Antenna TV, Get.TV, MoviePlex, and OPB+, this last one being the SD subchannel of the Portland, OR PBS affiliate. About a third of the hours I record on the HD DVR are SD, which is why my testing included SD channels.)