So -- I just started to look at upgrading to the 4th generation. I see that it does not have an optical out -- only HDMI. Currently, I use a 2 Channel audio system, so I've got optical audo coming out of my ATV3 into the amp, and then an HDMI taking the video into my tv. I guess I can't do that anymore? To upgrade to the 4thGen, I have to either use the TV speakers for the ATV or buy a new amp wtih an HDMI input and pass-through?