I'm not sure about the H20. Hifi can probably help you with that or jimbo but the x at the end is the latest and greatest remote from directv which includes more codes than the RB. I also tested both remotes side by side and my RBX has greater response after a button press than compared to the RB. So I suggest trying to get an RBX. Google it. There's a website that sells them cheap and has all the remotes including the latest one. I'll see if I can find the site.