You need to tell your receiver to select the HDMI input. Not sure which kind you have, so cant be more specific. Hope it's not a Yamaha like mine, the instructions are a complete hard to understand mess. Compared to the HP BD player anyway. On my amp, when I have correctly assigned the input, a HDMI light comes on in the amp display.
Once you got the amp taken care of, you need to tell your tv to show you the input from the HDMI connector you have with the cable coming from the amp.