From: utzoo!decvax!microsof!fluke!bhaskar
Newsgroups: net.jokes
Title: How many robots...
Article-I.D.: fluke.150
Posted: Fri Jul 16 13:28:12 1982
Received: Sun Jul 18 01:15:59 1982

does it take to change a light bulb?

None.  Robotic light bulbs are potty trained from the start and
don't need changing.