Samsung UN55ES8000G E-Manual page 700

If the problem does not appear in the
Picture test, make sure:
ΠYour connections are all consistent.
For example, if you've used the AV In
jack on your TV, make sure you have
used the AV Out jack on your video
source.
ΠYou have connected your devices to
the correct jacks. For example, if you
use the Component jacks, labeled
Pb, Pr, and Y, to connect your TV