<Table> <Tr> <Th_colspan="2"> What's My Line? </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> Paul Alter (1957 - 61) </Td> </Tr> <Tr> <Th> Presented by </Th> <Td> John Daly (1950--67) Wally Bruner (1968--72) Larry Blyden (1972--75) </Td> </Tr> <Tr> <Th> Starring </Th> <Td> Arlene Francis (1950--75) Dorothy Kilgallen (1950--65) Louis Untermeyer (1950--51) Hal Block (1950--53) Bennett Cerf (1951--71) Steve Allen (1953--54) Fred Allen (1954--56) Martin Gabel (semi-regular 1956--67) Soupy Sales (1968--75) </Td> </Tr> <Tr> <Th> Narrated by </Th> <Td> Lee Vines (1950--55) Hal Simms (1955--61) Ralph Paul (1961) Johnny Olson (1961--72) Chet Gould (1973--75) </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> No. of seasons </Th> <Td> 25 </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> CBS: 876 Syndication: 1,320 Total: 2,196 </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Producer (s) </Th> <Td> Mark Goodson Bill Todman </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 25--29 minutes (CBS) 22--23 minutes (syndication) </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> CBS Enterprises (1968--71) Viacom Enterprises (1971--75) FremantleMedia North America (current) </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> CBS (1950--67) Syndication (1968--75) </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> Black - and - white (1950--66) Color (1966--75) </Td> </Tr> <Tr> <Th> Audio format </Th> <Td> Monaural </Td> </Tr> <Tr> <Th> Original release </Th> <Td> February 2, 1950--September 3, 1975 </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Related shows </Th> <Td> I've Got a Secret To Tell The Truth </Td> </Tr> </Table> <Tr> <Th_colspan="2"> What's My Line? </Th> </Tr>

Who was the host of whats my line