TVs have outpaced broadcasting. Until broadcasters settle on a format, and decide to provide widescreen programming, you're gonna have to live with it. Set the screen format to one you both agree on and leave it there. I have all my HD TVs (5) set to display full screen.
Wayne
If there are no dogs in Heaven, then when I die I want to go where they went. - Will Rogers
Click here to see the CNet faces, learn a little about telephones,
internet connections, spyware removal, and download free software.
I have been living with the Panasonic TH-42PM5OU for nearly two weeks, and it looks like a good news/bad news situation.
First the good news: this TV, like a fine sound system, reveals the best and worst in the program material that?s fed to it. The best DVDs look outstanding, as do the best HD TV programs. Most SD TV programs seem to be surprisingly good too, though not as good as HD of course.
Now the bad news: most of the programming from my cable provider (Adelphia, Southern CA) is SD. Adelphia currently provides only nine HD stations, and of those nine, only one (KCET, which is a PBS station) provides wide-screen all the time. The others HD stations, including CBS HD, NBC HD, ABC HD, etc. provide some wide-screen programming, but much of the time there are black side-bars displayed (there are often times top and bottom side-bars as well).
The Panasonic TH-42PM5OU Operating Instructions (p. 16) explanation of 4:3 [Aspect] Mode says; ?Displays a 4:3 picture at its standard 4:3 size with gray side bars. (It may create an after-image on screen if displayed for a prolonged period of time.)". The Operating Instructions (p. 22) also talks about after-images; ?Do not allow a still picture to be displayed for an extended period, as this can cause a permanent after-image to remain on the Plasma display.?
Problem: This after-image issue is making both of us uneasy about keeping this TV. We could get rid of side-bars on 4:3 SD programming by going to one of the three other aspect modes ? ZOOM, FULL, or JUST. But my wife and I cannot agree on an acceptable alternative aspect mode. As a result, we are both uneasy about keeping this TV. Any thoughts?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic