ZyXEL AeroBeam Wireless HD Video Kit with 4 HDMI Inputs for $99.99 shipped. Here is a screenshot for your reference. It operates outside of the standard 2.4 or 5 GHz spectrum used by microwaves, phones, WiFi, and other common consumer electronics to avoid interference, and transmits 1080p video and full 7.1 channel surround sound. This wireless HD video kit has an in-room range of up to 30’ and is WirelessHD 1.0 Standard compliant. Most places have it for about $235.