<Li> 30 minutes (1998 - 2007) </Li> <Li> 1 hour (2008 - present) </Li> <Tr> <Th> Production company (s) </Th> <Td> Bunim / Murray Productions </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> Viacom Media Networks </Td> </Tr>

Who has won the most money from the challenge