I recently had to have my old DirectTV remote controls replaced with the new RC73 ones. I'd had the old ones for more than 13 years and the lasers in them no longer functioned correctly. We only had one to share, for 4 TVs, which created all sorts of frustration for me. Every time I needed to change the channel, I had to go search four rooms, for the remote. UGGHH!
Anyway..the new RC73 ones, came with directions on how to program the remote itself, but not the volume. I had to figure it out, through a few days, of "trial and error". So, I decided to do a blog post, to save you some time, my friends.