A TV was mounted on the front of the Rover and was operated remotely from Houston by Ed Fendell.  It was kept cool by a radiating mirror on the top, which had to be dusted, usually by the Commander, at every stop.  The big dust brush did a fine job on the TV mirror, on the battery covers, and on the LCRU mirror, but was much too coarse for the lenses on the TV and the Hasselblads.  A small, soft, fine-bristle brush was used for those.