The best way is always to go directly to the source. The original remote control that came with your TV is broadcasting information in infrared, all you need is an infrared receiver to see it. Many PCs today have an IR receiver built-in to them; if you can capture that information with an appropriate software program (such as the LIRC server itself), I can take that data and get it into Pierogi. (Also, you can use the generated LIRC file with any number of other apps, such as "irreco", or the new crop of LIRC apps on Android...)

Unfortunately, I'm not an expert myself on doing this; up to now, I've mostly just been working with config files that other people have created...