There are several options. Check out the Parasound SCAMP, or perhaps the Niles AC-3. I've own a couple of both and have used them with other home automation devices with excellent results. I used to use a Sonance VT-1 video trigger that I connected to my TV and it would trigger the Parasound SCAMP that I have connected to my amps so when the TV turned on the amps automatically turn on. It was perfect as my wife hates complexity so everything was automatic. Send me an e-mail if you need any help with getting things worked out.
Brad
Brad