In the living room I have 2 HR22s and a HR20. They are all working with my Harmony One - I set them up with individual codes 3+ years ago so that process is a little foggy now. All IR. Now I want to replace the HR20 with an HR34 and give it the same remote code. What do I look for now in the HR20 so I can transfer it over to the HR34 so I don't have to reprogram my Harmony?