Has anyone gotten any of the preprogrammed codes to work with this? I have tried every code and none of them work. I would rather not have to learn every code since I am afraid that If I every lose power for a significant amount of time I will have to spend all day re-learning my remote. Maybe this is not the case but I would assume this to be.

If internal codes don't exist for your item, the only solution is to manually program those buttons. Since you report this as a "Digital" cable box, it's possible GI used different IR codes than on their "Analogue" cable boxes which would be what the AV2000 has built-in.

As for power loss, Sony claims there is a 1-hour backup. I myself have inadvertaintly tested this for at least 8 hours, with no loss of memory.

While programming the original "universal" remote that came with Sony receiver I decided I wanted to completely reset it - so I took the batteries out, left it for an hour, came back and everything was still there. So, I phoned Sony. They said take the batteries out, press every button (to drain any power left in it), and after that it'll be reset. Still didn't work. So, I tried their suggestion but left it without power for the entire weekend. Came back, still hadn't lost it's programming. My final solution was to manually reset every button, which took quite a while.

I don't know if Sony engineered the AV2000 with simular technology - and I really don't want to test - but I wouldn't be overly concerned about losing programmed signals. Once you get the hang of it it only takes a few minutes to restore a single device any ways.

I have a digital General Instrument cable box also and code #01 worked for me. My only problem is that this box doesn't always respond to remote signals, especially the POWER signal. It is the same with the supplied cable remote. I think I am going to have them replace the unit.