Just purchased Yamaha RX-V465 and need to assign hdmi out puts and can't seem to figure it out. I have connected the cables according to a diagram. My items are Pioneer Elite Flat Screen and a Samsung Blue ray. I'm going crazy!

Had to download the manual for this one since i didn't work with that particular model yet, but should be able to help anyway. Ok so on the back of the Yamaha unit you have a total of 5 HDMI plugs. The first on the left is the receiver's output which is supposed to go to the Pioneer flat screen in the Input HDMI plug. The 4 other HDMI plugs on the yamaha receiver are the 4 inputs, so plug in the Blue Ray reader into the second HDMI plug from the left which reads (BD/DVD) HDMI1. Now everything is plugged in the right way, so if you already did plug it all up like that, you were OK so far. All that is left now is to first of all put the Pioneer flat screen on the right input (You can do that with the remote of the TV, or if i'm not mistaken, there is an input selector on the back of your Pioneer flat screen TV). When that is done you just need to put the receiver to the right input also, to do so, either with the remote again, or on the front of the yamaha receiver unit. In both case, the button you need is the Input button, press it untill the receiver says HDMI 1 on the LCD display. And now you're done, all you need to do is to turn on the Blue Ray, put a movie in and enjoy.:) If it does not work, either the receiver or the flat screen are defective and should be returned for waranty.