I discovered the auto-program finds a code that works for our ancient RC122 remotes.
1. With the TV on, press and hold OK+TV buttons until blinks 3 times
2. Enter 9-9-1
3. Press play button once and point remote at the TV
4. When the TV powers off, test by pressing the power btton.
5. Press OK again to lock the code.
Each remote model has it's own procedure. Good luck!