Liteon 5005x and DirecTV Universal Remote Control

Having three small kids, they keep misplacing my remotes. Now I can’t find the remote for my 5005x (which I love by the way, despite what some may say in here. IT WORKS, which is something I could not say about my Philips DVR75). I have a DirecTV Universal Remote Control for my TiVO and I want to set it up to work with my LiteOn 5005x. Naturally it does not contain any setup codes for this model, or any LiteOn models. Just a very wild guess, but has anybody here gotten those two to work together? Please email me directly at rduve@hotmail.com as well as posting it here. I am not a frequent visitor here yet. Thank you so much.