I'm new to home cinema so please be gentle with me. I have a Samsung 42" plasma with media station, a Yamaha RXV630 receiver and Mission FS1AV speakers. There are two problems. First, when I plug the speaker phono plugs into the media station it immediately cuts out the TV speakers. This means that I have to leave the receiver on permanantly to get sound from the TV. Second, I'm not really certain where the front left and right main speakers should be plugged into the media station. I've tried Audio out L-R and AV4 L-R but they don't appear to work. I'm beginning to think that they should plug into the same sockets as the bolt on TV speakers. However, the Missions are fitted with two pin sockets and these would have to be cut off in order to do so. Obviously, once they are cut I would have to buy new if that turned out to be the wrong solution. Any help would be much appreciated.