New member here. Googled and searched the forums for this...please forgive me if this has been discussed elsewhere.
Just got a new PN51E550 to replace my dead Panny 42" plasma. For the most part, I love it. It's freaking huge. Picture from a good HD source is great. 3D works as advertised. Apps are way more interesting and useful than expected. No buzzing. The wife loves it.

I've got a problem, though, and this could be a deal breaker. The 4:3 picture size option seems to be useless.
Examples:
1) Watching DVD on PS3. Content is 4:3. When PS3 is set to 1080p/16:9, selecting the 4:3 picture size squishes the image - from left to right you get:
vertical grey bar
vertical black bar
squished image
vertical black bar
vertical grey bar
I can work around this by changing the PS3 to output 480p/4:3, but it changes the picture quality (since you're no longer upconverting) and it is a bit of a pain.
2) Watching Star Trek: TNG Blu Ray on PS3. Content is 4:3. Selecting the 4:3 picture size yields the same result as in example #1, but here the workaround is unacceptable. I bought TNG on Blu Ray specifically for the picture quality.
3) Watching PBS HD OTA off the TV tuner. Content is some old cowboy movie in 4:3. Setting picture size 4:3 yields the same result as in example #1, except there is no workaround for the TV tuner - there doesn't appear to be a way to force 4:3 output from the tuner. I mean, why would you? This is an HDTV.
My Panny evidently placed the grey side bars in 4:3 format ON TOP of the picture. Samsung seems to insert them from the sides. If I can't find a solution for this, I'm going to have to trade this in for another set that handles 4:3 the way my Panasonic did.
Stretching/zooming is NOT an acceptable solution to me.
Please tell me I'm missing something here.