I have been playing with the MX810 for a couple of weeks now. My set up is this:

Hitachi 42HDT79 hooked up to Time Warner direct to use the Qam Tuner features.

Denon DVD1740 hooked up to HDMI 1 on the Hitachi

Onkyo TXSR 504

I have spent over 5 hours trying to program this remote. No success. The problem is there is not a discreet code for the ANT input. The toggle programming for this input does not work. Switching between activities and having to go from ANT to an input is great, however trying to get back to ANT is impossible to program in the automation features.

The remote looks great. I love the layout. Unless your setup has the ability to select discreet inputs, this remote is too troublesome to work.

I would highly recommend this remote if you are able to use selectable/discreet inputs.