Good Gear Guide
In pictures: Belkin ScreenCast AV4 Wireless AV-to-...
The transmitter can accommodate up to four HDMI devices and it will transmit Full HD video, surround sound (up to 7.1) and even 3D video to the receiver that's plugged in to the TV. It's also HDCP compliant, which means that you'll have no problems watching Blu-ray discs through this solution. Belkin says it has an operating range of up to 30m and that it shouldn't be prone to interference from other networks or wireless devices due to the technology that it uses to send the uncompressed data.
In pictures: Belkin ScreenCast AV4 Wireless AV-to-HDTV Adapter