Question:

Can I install the Samsung TV's power cable inside a wall?

Answer:

Samsungs TV's power cables are UL (Underwriters Labs) certified but are not CL (In-wall) rated. A CL rating on a cable (CL2 up to 150 volts, CL3 up to 300 volts) means these cables have a slow burning outer jacket that should meet the fire codes and are safe for in wall installations. Since the power cord for the TV is not CL rated it should never be installed inside a wall.