I have a 5.3 IR remote for my 622 receiver which is showing its age. Some of the buttons are starting to take a few presses to work. I see 5.3 remotes going fairly cheap on ebay, but I also see a lot of newer remote models, some of which say that they're compatible with the 622. Would there be any advantage to getting a newer model of remote? If so, what's the newest one for the 622?