I'm setting up a new installation of MythBuntu 11.04 and need to enter an external channel change command script name/location in the backend setup (I assume it's still needed). The MythButu control center Infrared settings seem to set up the set-top-box, but do I still need to manually download/edit the script? If so, do I use the set-top-box model from the control center (Motorola Cable box)?