who hosted the first jeopardy episode on march 30th 1964
Art Fleming
Jeopardy!
Both NBC versions and the weekly syndicated version were hosted by Art Fleming
wiki:826411
Jeopardy! [SEP] Introduction
Both NBC versions and the weekly syndicated version were hosted by Art Fleming. Don Pardo served as announcer until 1975, and John Harlan announced for the 1978–1979 season. Since its inception, the daily syndicated version has featured Alex Trebek as host and Johnny Gilbert as announcer. With over 8,000 episodes aired, the daily syndicated version of "Jeopardy!" has won a record 39 Daytime Emmy Awards as well as a Peabody Award. In 2013, the program was ranked No. 45 on "TV Guide"s list of the 60 greatest shows in American television history. "Jeopardy!" has also gained a worldwide following with regional adaptations in many other countries.