Vizio E55-E1 User Manual page 33

I see "noise" or static on the screen.
• When your Display's digital capabilities exceed a digital
broadcast signal, the signal is up-converted (improved)
to match your Display's display capabilities. This
up-converting can sometimes cause irregularities in the
image.
When I change input source, the display image changes size.
• The Display remembers the viewing mode on each input
source. If the viewing mode on the new input source
differs from the one on the input source you switch from,
the difference may be noticeable.
• See Changing the Screen Aspect Ratio.
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