I think I have seen this before, but I cannot find it by searching. I have had this happen ALOT here recently. It happend quite a bit once before then quit for a long time. The whole screen including Tivo menus turns black and white with color bars in a "beat" pattern going up and down the screen. This goes on for several minutes and may go away by itself and WILL go away with a hard reset. I have an unmodified 70hr Hughes Direct Tivo. Thanks.