Use an in-wall cable management kit
Run the cables inside the wall
Install a recessed media box behind the TV
Use a cord cover or cable raceway
Paint the cord cover to match the wall
Hide wires behind furniture or a console
Bundle cables with Velcro ties
Use a cable sleeve to combine multiple cords
Route cables through a wall-mounted shelf
Place a power outlet behind the TV
Use a wireless HDMI setup
Use shorter cables to reduce visible slack
Secure cables along the TV mount arms
Hide power strips inside a cabinet
Use adhesive cable clips to guide wires neatly