Realistically, the DTA remotes just aren't going to successfully send Power signals to the Polaroid. You can find Comcast (or Xfinity) DVR remotes on eBay for $6 shipped. Just make sure that you get one that has a red OK/Select button. Use the 982 command
to unlock the cable setup code, and use 01982 for the DTA. 10030 should still work for the TV, but now we expect the Power signals to work.