Just keep in mind, if you'd bought a "dumb" remote they wouldn't supply you with a code for your specific models either. They'd tell you to try all the manufacturer's codes until you find one that works.

Same applies to the MX remotes.

So, for instance, while there may not be an HR20-700 in the data base, other models of DirecTv gear use the exact same remote: for instance the H20 HD satellite receiver (non-DVR).

It'd be nice if URC updated their database more frequently, but especially with new equipment, they're going to be behind.