There are some real classics here: http://www.museumofhoaxes.com/aprilfool2.html The spaghetti harvest was my favorite: #1: The Swiss Spaghetti Harvest In 1957 the respected BBC news show Panorama announced that thanks to a very mild winter and the virtual elimination of the dreaded spaghetti weevil, Swiss farmers were enjoying a bumper spaghetti crop. It accompanied this announcement with footage of Swiss peasants pulling strands of spaghetti down from trees. Huge numbers of viewers were taken in, and many called up wanting to know how they could grow their own spaghetti trees. This morning here in L.A., one of the stations was "reminding" people to "be sure to set your clocks back 1 hour tonight". Anyone else play any good practical jokes? I would think physicists would come up with the best pranks!