I have a solution which has worked well for me. It uses the DVD button at the top of the remote. It was a trade-off as none of the codes in the RC144 Philips remote will work any Blu-ray players, so the DVD button was unassigned. The 922, 955 and 977 codes are explained in the directions for the FIOS remote. http://onlinehelp.verizon.net/consumer/bin/pdf/philips%20rc1445302%20user%20guide.pdf
1. Set up your TV button to work your TV.
2. Set up your Onkyo code, pick one to turn on
the receiver. I used 3719
3. Use the 9-2-2 code to cycle through all available codes. At about a count of 300 I found one which will turn the Onkyo receiver off. Make sure you start this process with the ONKYO receiver already on. Once you find it press the OK button.
4. Use the 9-7-7 code to power all devices TV, AUX and DVD from the power button.
In this way, each time the power button is pressed it will send both the power on and power off signal to the ONKYO receiver.
This technique works well when you point the remote at the ONKYO receiver and press power button. Apparently the TV has better reception for the signal then the ONKYO does.