i have an update. i, too, have been too busy to play with my new toy. plus, i've been traveling, so i haven't even had time to enjoy it that much. in any case, here are a few things i've noticed as well as new questions i've come up with.
just yesterday, i finally had directv install my new dish. while they were up on the roof, i asked them to install a cm4221 off-air antenna for my locals. although it is obvious, the hr20 connected via hdmi to my kd card absolutely knocked the socks off of the r15 connevected via s-video. upon first viewing, i got a tingly feeling which somehow acted as reassurance of all the funds that have been pledged to this cause. i have to say, i'm very happy! i have to say, too, that my directv-provided hd locals are very close in pq to my ota hd locals. i don't regret getting the antenna because i can pick up far more stations, but i would've been happy with the pq had i not added the ota antenna.
i will put myself into the group of posters who have said don't worry about the double-scaling. the pq is so good that i can't understand what effect the double-scaling is having, if any. comparing the dot-by-dot to the full modes on the panel produces virtually identical images, with respect to pq. of course, the aspect ratio is different, but rescaling seems to have no noticeable effect. for those of you worried about it, you shouldn't be.
also, one more comment about the kd card: the manual clearly states that 1360x768 is not currently supported by the kd-pc2, but will be made available in a future firmware upgrade. i remember reading earlier that people were unhappy with the kd documentation. however, i thought i recalled people being unhappy because the documentation stated that the board supported nr, even though it didn't. i guess my question is: do other kd owners see the same note in their manuals? is this a good sign, or a red herring?
next, i actually have a few answers to questions i raised myself: when pressing the display button on the 507cmx remote, the signal displayed is what is being output by the kd-pc2. in my case, this always reads 1280x768. however, the remote for the kd card has an info button. pressing that displays the signal going into the kd card. therefore, it is easy to see the chain of processing going on. i can see what is being output by my hr20, and then what is being output by my kd card.
speaking of the kd card, i do have a question. the documentation for the aspect menus is not too great. what i would like to know is if there is a way to control aspect ratios based upon input signal. right now, if i set the aspect to horizontal stretch, the image is stretched whether it is 4:3 or 16:9. obviously, i don't want my hd material to stretch. this seems kind of bizarre to me. the way i am currently handling it is to have the stretching done by the hr20.
and finally, one last question about the actual build quality if the panel. one thing i've noticed about the glass is that it is not smooth. i have never owned a plasma before, so i'm not sure if this is expected. i only notice it when looking at reflections. the reflections of my crt are smooth as glass, but the reflections on my 507cmx are a little wavy. is this something to be concerned about?
thanks for all your help, guys/gals. once i calibrate my panel, i will post the settings. if anybody else has settings, it would be nice to see those, too.