guiri, yes I believe what to say is correct but to be absolutely honest, I haven't had a huge amount of time to play with TMB. I did try it on 30W and it cleared Cabo channels which the MR on its own did not. I also flicked through some other channels on 19E, 13E, 5E and 1W but I wasn't able to find anything that wouldn't open that would without the TMB. You can add channels to the TMB if you wish but to do so you must delete some of the existing ones because of limited memory capacity so it is user configurable to that extent. You can also import (copy and paste) keys to update the TMB which negates the need to spend time with the remote control in front of the TV - especially useful when your wife wants to watch Coronation Street! All in all a very nice user friendly package (which was why I thought it perfect for somebody new); you can download it and take a look at the programming page on your PC before you do anything with your tit card just to get a feel for it.