Answer:
They have been Hit TV Shows, TV shows, Cabinet Departments, Fast Food Chains, Colleges, Celebrities, and many others and back in 1986, 1988, and 1989 they were Just "In Other Words". A related link has been added that could take you to a whole list of them. In January 12 1988 Alex Trebek says, about the category "Movies in Other Words", "and that category means exactly what it says". The first clue was "The square root of 100" and the answer was 10.( The title of the movie with Bo Derek)
If the first link doesn't work type the words "in other words" into the search for any season of the Jeopardy Archive related link.