Question ? When the channel number is pressed on the Remote Control. Does the IR blaster send just the number or Zero padded? That is, if I select channel 3 on the remote does it send "3" or "03"?

I am trying to build a IR file for the Topfield TF4000T set-top box which for some reason uses the Digit 0 key on the keypad to change the aspect ratio. Hence in my test so far the aspect ratio keeps changing as I change the station. From discussions with Topfield support this cannot be changed, so if the TiVo is sending left-padded number codes then it may not be a going concern with this STB (or any Topfield box by the sound of it!)