Trucky, your remotes sounds similar to the PMDVD5 remote described here...
[Link: remotecentral.com]

Therefore, I would suspect that your remote would respond to the same codes. The codes listed for DirecTV in that manual are: 863 864 564 763 963 259 260 263 962 664 065 265 465 765 866 966 367 567

However, the D10 and D11 are fairly new and they use a very complicated remote signal, so I don't know if any of those DTV codes are the right one. If none of them work, I suspect that your remote simply doesn't have a code for your DTV box.