Programming Directv RC66X IR remote to Upstar TV?

After exhausting attempts from Directv directions, many Google attempts to find codes to program the RC66X remote from Directv to match with my Upstar 24" HDMI TV my thumb is about to fall off. Trying a manual attempt I have just about given up. I am OK with buying a different universal remote if needed.

Thank you in advance for any solutions to end my using 2 remote dilemma.