i love the show jeopardy!
It was created by Merv Griffin.
is it still produced by his company 
im not sure but The show features a quiz competition in which contestants are presented with general knowledge clues in the form of answers
oh.. who is the host of the show?
Alex Trebek! The original daytime version debuted on NBC on March 30, 1964
oh wow he has been there that long, is he the original host?
1978 to March 1979. The current version, a daily syndicated show produced by Sony Pictures Television, premiered on September 10, 1984.
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 33 Daytime
List of Jeopardy! tournaments and events
"Jeopardy!" is an American television quiz show created by Merv Griffin, in which contestants are presented with clues in the form of answers and must phrase their responses in the form of questions. Over the years, the show has featured many tournaments and special events since Alex Trebek became host in 1984.
Regular tournaments and events.
Regular tournaments and events Tournament of Champions.
Starting in 1985, the daily syndicated version of "Jeopardy!" has conducted a regular tournament