Im pretty sure urc disco'd the mx880 so I doubt they could help you with a discount replacement. Maybe a urc disty has some new "old" stock still available. We found some new mx-850's recently this way
There was an mx-880i on eBay a couple weeks ago, maybe it's still available? I'm pretty sure you can get a regular 880, and swap the "I" rf board into the replacement remote thus making it work with your "I" series Mrf box.
The screen on the 880 is not replaceable, it's a ribbon cable from the screen soldered/glued directly to the pc board. Once the screen or its bond to the board is bad, the remote is done.
no
I'm Not an engineer, but I play one on TV. My handle is Tweety but I have nothing to do with the organization of similar name. I just had a really big head as a child so folks called me tweety bird.