This is what Fox continues to do with "The Simpsons," now in its 36th season ... to retire "Hawaii Five-0" while it was pulling down its highest Nielsen ratings share ever (9.7) and ranking ...

The series' final episode airs Friday, April 3 at 9 p.m. ET/PT on CBS ... their highly anticipated crossover episode! 'Hawaii Five-0's season nine finale airs Friday, May 17, at 10 p.m. ET ...