Presume you are on Ch**us MMDS? I dont have a TX but I presume the remote is the same as all Max models.
im moving into house so none at moment, and its in the sticks so god knows whats out there. anyway the old man has n.l or ch..us i cant tell the diff but he has a red box and it works fine i tryed the remote off his and it does not work .
OK apologies they do differ. Best bet is to see what service you can avail of first and then drop back. Replacement remotes for the TX can be got here http://www.bubblecableboxes.com/remote-controls/cat_58.html
Havent tried it as I am on true cable, but from reports it seems fine. Does what it says on the tin as such. But as said it is ONLY for Ch**us MMDS.