You would be surprised at how many different incompatible remote codes a single manufacturer can use, which is why apps like this can be an absolute nightmare. Equally Universal remotes which you can buy on any street corner never seem to work fully.

The core of qtirreco is LIRC, which is an application for remote control, and if you have a compatible receiver, you can use programs to learn your particular remotes.

Qtirreco is nothing more than a pretty frontend for LIRC. If you want know more about it, then go and have a look at the website (tip: google lirc) Masses of technical info, oh, and read the first post on this thread.

BTW, there is a remote for my cable box ready, but not my TV - time for me to create one and upload the config when I get chance.