Samsung UN46ES7500F E-Manual page 480

overly rigid or thick cables. Make sure the
cables are flexible enough for long term use.
If mounting the TV to a wall, we recommend
using cables with 90 degree connectors.
You see small particles when you look closely at
the edge of the frame of the TV.
This is part of the product's design and is not
a defect.
The PIP menu is not available.
PIP functionality is only available when you
are using an HDMI, or Component source.