I sit here on my HTPC writing this post after some experimentation tonight. Thanks for all the responses. This is for the Panasonic TH-50PHD6UY.
As stretch modes are very important for 4:3 content, I hope some of this information will help those who are potential buyers. Panasonic's Just mode is excellent and I wish it was on all input modes for 4:3 content bu the chart below will show you where it is available and isn't. I won't try to explain the stretch/display modes. Have a look at the manual on-line for a good read on how they look.
Here's what I got to this point. Listed is the input port, what I hooked up and the display modes that were available.
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DVI input with the following hooked up:
Nothing - normal, zoom, full, just
PC * - normal (4:3 movie showed gray bars), zoom, full
* PC was hooked up at 800x600, 1024x768, 1280x768, 1376x774 (native resolution thru PowerStrip) Note: I could not set resolution to 640x480 to try 480P because the Windows drivers did not support it. PC was hooked up the same for VGA input.
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VGA with the following hooked up:
Nothing - normal, zoom, full, just
PC * - normal (4:3 movie shoved gray bars), zoom, full
SD or HD** thru Dish 6000 - full (4:3 movies showed black bars)
** Tried both 720P and 1080i with the Echostar 6000 HDTV satellite STB.
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Component with the following hooked up:
Nothing - normal, zoom, full, just
PC * - full (4:3 movies showed black bars)
SD or HD** thru Dish 6000 - full (4:3 movies showed black bars)
480i DVD Player - normal, zoom, full, just
PS2 with component cables - normal, full, zoom, just (480p I guess)
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Composite with the following hooked up:
Nothing - normal, zoom, full, just, auto
SD or HD** thru Dish 6000 - normal, zoom, full, just
480i DVD Player - normal, zoom, full, just
PS2 with composite cables - didn't try.
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After this experimentation, I realized that I never tried my normal interlaced DVD player (a cheap Hitachi) through component cables but rather, I hooked them up with composite instead. I tried it once on my sister's Samsung DLP RPTV and it didn't look that good so I never even wanted to try. Thanks to your feedback I tried it and was quite shocked at the results.
I can safely say that I may now retire my HTPC because the cheap DVD player does almost as well as the PC with an ATI 9700 Pro Radeon card with all the trimmings. Although he ATI Player that comes with the ATI software allows for 4:3 content stretching, the Hitachi DVD player has the edge because it allows me to use the plasma's Just mode to stretch 4:3 and is a lot better.
The Dish 6000 also has stretch modes built in but both the ATI software and the Dish 6000's stretch modes are similar to the plasma's "full" mode and evenly stretches content across the screen, similar to ESPN's "tragic" stretching of their non-HD content on their HD channel.
Anyway, thanks for the replies and I hope this helps someone else out who may be interested in a 6UY.
Santo