Ethernet over powerline is nothing new - many users are already taking advantage of their mains cabling to avoid stringing Cat5 around the house - but HDMI over powerline is less common. Averlogic wants to change all that; they've been demonstrating their 1080p H.264 streaming system at Computex, allowing high-definition video to be squirted through mains cabling.
One transmitter can simultaneously stream to three separate receivers, each of which can output via HDMI, composite or component connections. The transmitter itself has three HDMI inputs and one set each of composite and composite, and everything can be remotely controlled at the viewing end.
Streamed media can be up to 1920 x 1080 at 24p or 60i, together with 5.1 surround sound, and Averlogic claim it has a roughly three-floor, 300m range with 200Mbps data rate. The system is also compatible with the HomePlug-AV and HD-PLC standards. No word on when we could expect to see Averlogic products on shelves, though.