UEI made remotes like yours accept 5 digit codes for individual functions like the Channel Guide, you can search them out, by pressing the SET key once and release the enter 00000, while pointing at your tv, if isn't want you wanted, try SET 00001, SET 00002, and so on. The command won't fire until after the fifth digit. Once you find one you want mapped do the following to map it to an unused button:

1. tv
2. press and hold SET for two blinks, release
3. enter 9 9 4
4. tap SET for one blink
5. enter 5 digit code
6. pick a key