It's interesting ref the wire loom. I've been using this product since I first saw it in my car's engine compartment about 25 years ago when they first started using it in that application. At that time only black was available but now it comes in several colours.

My TV has 1 visible 'fat cable' that contains the power cord, a couple of HDMI cables & a grounding wire all in 1 clean package. Judging from the many pics I see of other people's systems, not many use it...

TAM