I have an Onkyo TX-844 receiver. It's old - but great! I lost the remote and ordered a replacement from Onkyo. They sent me a RC-329S. It works great with the TX-844 except I can not switch to Video 2 with the remote. I plan to buy a new Harmony to work with the TX-844 and Scientific Atlanta PVR. Will I be able to find the code necessary to program the Harmony to enable the Video 2 switch? I will not be able to Learn the code from my existing remote.