"Do you want me to check the ship movements to Fantasy Island?"
Detective Ron Harris
Detective Harris had a penchant for coming up with derisive nicknames for the psychiatric ward at Bellevue. By calling it 'Fantasy Island', he wasn't causing a Zonk. Harris wasn't making a reference to the TV show; he was talking about the actual resort where people could go to live out their greatest fantasy.
Everybody knew about it; that's how they were able to book passage to the island. What the general public doesn't know is that Roarke was a Gallifreyan Time Lord who has regenerated at least once and fathered a diabolical genius named Miguelito Quixote Loveless.
Just thought I'd mention that.....