Trying to pair and old remote with a 4k box XG1v4-a

I like the old xr11 remot better and the guys at the local commcast store say it's possible.

Why do I like it better button feel and layout.

The portion I am having trouble with is pairing it with my LG tv and Denon AVR.

When I try to pair it first it says I have a Denon TV which I don't think any body has.

I do have a Denon AVR and a Lg TV . 

I tell it I don't have a Denon I get a list of TV's that start with A and don't exist and more

like Admerial and stuff I have never seen.  If I search for LG in the search box the closest 

thing it gets is lgo and there is a list I don't even recognize. 

Anybody got any solutions. 

The TV contols on it will work for the commcast box commands but 

I can't pair it with my AVR and TV.