Hi Ben, you are on the right way: As I said above: you need Firefox and if you only want to add one hex code, that's it. Logon to members.harmonyremote.com and go the the "Learn infrared..." of the specific device (TH-42PV60A). On the bottom of the page you can input a new command to learn (where it says "MyNewCommand"). Type in a name like "HDMI2" and press "Learn New Command". Now Firefox prompts you wether to open the file or to download it. Download the file to the same directory where you unzipped the concordance zip file. Open a command shell and navigate to that directory. Type in "concordance.exe -l LearnIr.EZTut". Wait a few seconds until you can choose wether to [L]earn new commands or to input Pronto [H]ex codes. Type "H" and copy the code above. Paste the code into the command window and press enter (right click in the command window and "Paste"). When it sucessfully reads the code concordance offers you to [U]pload the code. Press u and q to quit. The webpage should now change back to the learn page showing your new command at the bottom.
