Sorry to raise a long dormant thread. I am in the process of installing a Foxtel iQ3 box and found the above codes very useful for my Pronto TSU9400. Unfortunately the "Back" code is the same as the "Rewind" code and the iQ3 box agrees with me. I have thus far failed with my attempts to learn the "Back" code from an iQ2 remote, due to ignorance on ProntoEdit Professional 3 and similarly have failed in my online search. An kind soul with the correct code out there?