This should be a QUICK ONE! My 2nd, Livingroom project, is to hide my unsightly wires hanging from my TV!
Check out my 6 min installation video!
I did some research and I went for simplicity and speed of installation! I chose the Legrand-Wiremold CMK70 Flat Screen TV Cord and Cable Power Kit.
This kit came with a hole saw, and fish tape that I can reuse later on! It is much simpler to cut a round hole then to fiddle with a drywall knife and make sure you have level rectangular cuts!
I think the round box is the FASTEST way to do an in-wall installation!