said by Mutiny32 :

That's not the point of this test. They want to see if completely shutting off analog will cause any issues. While this will most likely cause nothing but a bunch of rural residents some inconvenience until they figure out they need to buy either satellite or get their DTV converter box.

said by RARPSL :

How will broadcasting a special Screen and Audio via the Analog Signal TELLING the viewer of the problem not be a better test than sending out NO Analog Signal during the test period? My way INFORMS the viewer of the need to get satellite or a DTV Converter box - Turning off the Analog feed only prevents them from getting any signal without offering an explanation or assistance in solving the problem.