I'm guessing the TV power button on the remote turns on/off your TV. If that's the case I think you are out of luck unless you get a programmable remote that supports more than 2 devices. I'm a fan of the Logitech Harmony 665.
You may wish to investigate using HDMI-CEC if your receiver and TV support it. It allows one device to control the other over a HDMI cable. More info here:
I use this method to power on my PS4 with my TV remote.