I got a wireless and new tv in November and really love it. Been wanting wireless for a while.
Front speakers, center, and sub all wire as usual.
Rear has a controller/amp that plugs into the wall and the two rear speaker plug into the controller/amp.
Works perfectly for me since the wire from one side speaker just runs under the couch.
Recap... rear speaker have wires, but they don't run to the front, just to a small box/amp that sits on the floor by the rear speakers .
The speaker sound great (they are same speakers as the front) and plenty of power.
Good luck
My surround is a Samsung.