I just uploaded the MXD file I used for my MX-800. It should be available whenever it gets approved. Note that I did NOT program in every single code above into the remote, as I didn't feel the need to have direct access keys for things like the picture or audio modes. Below is a list of the functions I chose NOT to include in the MXD file.

0MTS
1Source
2Power Toggle
25Channel Add/Delete
54Air/Cable
68Favorite Channel
99DMA
107Channel List
119Energy Saving Toggle
122VCR Mode (Remote)
123Cable Mode (Remote)
125TV Mode (Remote)
126DVD Mode (Remote)
127STB Mode (Remote)
139HDMI/TV Toggle
189Picture Mode (Dynamic)
222Picture Mode (Movie)
223Picture Mode (Standard)
2274:3
22816:9

I will post a link to the MXD file once it becomes live.

Regards,
Jeff