"Dark Knight Court" is the sixteenth episode of the 24th season of "The Simpsons" and the 524th episode overall. It originally aired on the Fox network in the United States on March 17, 2013. The episode is dedicated to Janet and Maggy Reno's brother, Robert Reno, who died of Alzheimer's disease.
The FOX network has aired the Simpsons since 1989.
Since the episode is from the 24th season and aired in 2013, it is simple to deduce that the program has run since 1989 and it actually has. The system probably assumed it hadn't run non stop, or can't do basic math.
( z1 air :ARG0 ( z2 network :name ( z3 name :op "Fox" ) ) :ARG1 ( z4 broadcast-program :name ( z5 name :op "The" :op "Simpsons" ) ) :time ( z6 since :op ( z7 date-entity :year 1989 ) ) )