Hi 3FG, I too am having the same issue with the Comcast DTA remote not functioning with the Polaroid FLM-1514B. I tried all codes and the closest is the one you referenced 10030 but it will not recognize the power on/off. All other functions seem to work; ch+/- (DTA ch:u/d) vol+/-, last, mute but no power on/off function.

When I ran through the 9-1-1 search several did turn the tv off but never on and other functions were either messed up or did not work at all. Like codes 11178 & 11240.

This is frustrating having to use a seperate remote for power on/off. I have 3 Comcast DTA's & remotes and all the remotes are the same and act identical.

Any further suggestions would greatly be appreciated - Thanks