Use an in-wall cable management kit
Run cables inside the wall with a recessed power outlet
Install a cable raceway or cord cover
Use a paintable wire molding strip
Hide wires behind a floating shelf or media console
Bundle cables with Velcro ties
Use shorter cables to reduce excess slack
Route cables through the wall cavity if permitted by code
Place a power strip inside a nearby cabinet
Use a TV mount with built-in cable channels
Conceal wires with decorative wall panels
Paint cord covers to match the wall color