The Canton Sound L Smart Sounddeck is a solid foundation (literally) realizing a lot better sound quality from a television.
Canton has the Smart Reference 5K ready for you; a wireless and active speaker with high-end specifications. However, you still need to lay a wire to the wall socket.
In search of a capable but affordable surround amplifier? Then check out the Canton Smart Amp 5.1, to which you can connect a lot.