Thanks for all the help. Here is where we are.
The original learned "good" codes work. Confirmed by the fact that I have a Harmony and learned from the Touchstone remote and then taught the Pronto from the Harmony and those work. The problem, and thanks for the advice, was with the port on the extender. I've never had a port on an extender not work and these are all with single emitters.
Also, the lift in the video about pairing is for a different lift that Touchstone sells. In the video you can see they use a button on the control to start pairing. My control doesn't have that. My lift comes with a control with an ir sensor port and an ir sensor and an ir remote and a rf remote.
Thanks again.