I won't be able to work on this until later, but you can help this along by being a little more precise. I suspect that the setup code 1022 is really Video 1022--the remote needs to have the Video device button (maybe called VCR or DVD, etc.) pressed before entering or using the setup code. Is that right? If so that means the TV is using the RCA IR protocol.

There is also a Video 0038 code (but no TV 0038), but Video 0038 is a NEC IR protocol. Some UEI remotes have TV 1038, 1138, 1238 codes (not necessarily in the URC-3300) which are also RCA IR protocol. Any chance that 0038 is really TV 1038?

Finally, if you follow the instructions in the above link for the 990 command, you can blink back the setup code that is assigned to a device button. I'd like to know what functioning code was found by code search.