It's been a long time since I've been able to afford a new home entertainment system, so I'm pretty clueless as to how things work nowadays. I'm planning on treating myself to a new flat screen smart TV next month, and want to hook it up to a decent sound system. Basically I want to be able to put the TV's sound through my stereo so I can play YouTube videos etc through the TV, and have the videos sound play through the sound system. Whats be best way of setting this up? Thanks.