Originally Posted by raouliii
I'll have to disagree with this explanation. Set to 480i (or 480p), SD is sent to your tv as is, where it CAN be zoomed, linear/non-linear stretched, or pillared, depending on your display's capability and the viewer's desires. This setting usually provides the viewer with more pleasing options for SD viewing than the built-in stb options. The delay is associated with the display adjusting for a change in video input format, ie. HD to SD or vice versa.
I know what this setting is supposed to do and the theory behind it but for some reason 99% of the TVs I see receive the signal as I stated without additional input from the customer. And a lot of TVs I see do not save pic size settings when switching inputs or resolutions which can cause a lot of fumbling back and forth with remotes on a normal basis to achieve the picture size they desire.
It all depends on what the viewer wants and their level of technical savvy. If they want a stretched pic I set it to 480i, if not I set it to OFF. Having a tv that does not save these pic size settings makes it a hassle and in my experience for most of my customers, as long as I'm not leaving them with a subpar picture and they get the format they like, the fewer things they need to do to watch tv the better.
And yes the delay is resolution switching, which can be avoided by setting to OFF or STRETCH. It all depends on what one desires.
I don't debate the technical aspects and validity of your comments but I just try to make it as easy as possible for people without compromising picture quality and they way I almost always achieve this is by using the settings this way.