The theme song was composed and sung by Alan Thicke, who was also on of the show's producers. Thicke is also a friend of fellow Canadian and host Alex Trebek.
This is Alex Trebek's first game show in the United States after starting his career in Canada.
The title is a reference to "The Wizard of Oz". Nearly a week after the show debuted, Leo Guild filed a lawsuit against NBC for stealing his "Wizard of Oz" title.
It is believed that most of the master tapes of this show were wiped by NBC due to a network policy at the time because they show no value in keeping them intact. The tape wiping policy at NBC ended in 1979.