<Table> <Tr> <Th_colspan="2"> The Tonight Show </Th> </Tr> <Tr> <Td_colspan="2"> The title card for The Tonight Show Starring Jimmy Fallon, the current incarnation of the show </Td> </Tr> <Tr> <Th> Genre </Th> <Td> <Ul> <Li> Talk </Li> <Li> Variety show </Li> </Ul> </Td> </Tr> <Tr> <Th> Created by </Th> <Td> <Ul> <Li> Steve Allen </Li> <Li> Dwight Hemion </Li> <Li> William O. Harbach </Li> <Li> Sylvester Pat L. Weaver, Jr . </Li> </Ul> </Td> </Tr> <Tr> <Th> Presented by </Th> <Td> <Ul> <Li> Steve Allen </Li> <Li> Jack Paar </Li> <Li> Johnny Carson </Li> <Li> Jay Leno </Li> <Li> Conan O'Brien </Li> <Li> Jimmy Fallon </Li> </Ul> </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> <Ul> <Li> 2,000 (before Carson, total) </Li> <Li> 4,531 (under Carson) </Li> <Li> 3,775 (under Leno, first tenure) </Li> <Li> 146 (under O'Brien, 1 unaired) </Li> <Li> 835 (under Leno, second tenure) </Li> <Li> 880 (under Fallon) </Li> <Li> Total: 12,001 </Li> </Ul> (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Running time </Th> <Td> Varies </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> <Ul> <Li> NBC Productions (1954--96) </Li> <Li> Tonight Show Company, LLC. (1962--80) </Li> <Li> Carson Productions (1980--92) </Li> <Li> Big Dog Productions (1992--2009, 2010--14) </Li> <Li> NBC Studios (1996--2004) </Li> <Li> NBC Universal Television Studio (2004--07) </Li> <Li> Universal Media Studios (2007--11) </Li> <Li> Universal Television (2011--) </Li> <Li> Conaco (2009--10) </Li> <Li> Broadway Video (2014--) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> NBC </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> <Ul> <Li> Black - and - white (1954--1960) </Li> <Li> Color (1960--) </Li> <Li> 480i (1954--2002) </Li> <Li> HDTV 1080i (2002--) </Li> </Ul> </Td> </Tr> <Tr> <Th> Original release </Th> <Td> September 27, 1954 (1954 - 09 - 27)--present </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Preceded by </Th> <Td> Broadway Open House (1950--51) </Td> </Tr> <Tr> <Th> Related shows </Th> <Td> <Ul> <Li> The Tomorrow Show (1973--1981) </Li> <Li> Late Night (1982--present) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> The Tonight Show </Th> </Tr>

Who has been the host of the tonight show