<Table> <Tr> <Th> Season </Th> <Th> Timeslot </Th> <Th> Season premiere </Th> <Th> Season finale </Th> <Th> TV season </Th> <Th> Rank </Th> <Th> Viewers (in millions) </Th> <Th> Rating (Adults 18 - 49) </Th> </Tr> <Tr> <Th> </Th> <Td> Wednesday 9 / 8C </Td> <Td> September 27, 2006 </Td> <Td> June 13, 2007 </Td> <Td> 2006--2007 </Td> <Th> #136 </Th> <Th> 2.9 </Th> <Th> 1.3 </Th> </Tr> </Table> <Tr> <Th> Season </Th> <Th> Timeslot </Th> <Th> Season premiere </Th> <Th> Season finale </Th> <Th> TV season </Th> <Th> Rank </Th> <Th> Viewers (in millions) </Th> <Th> Rating (Adults 18 - 49) </Th> </Tr> <Tr> <Th> </Th> <Td> Wednesday 9 / 8C </Td> <Td> September 27, 2006 </Td> <Td> June 13, 2007 </Td> <Td> 2006--2007 </Td> <Th> #136 </Th> <Th> 2.9 </Th> <Th> 1.3 </Th> </Tr> <P> The DVD release of season four was released after the season has completed broadcast on television . It has been released in Region 1 . As well as every episode from the season, the DVD release features bonus material such as, audio commentaries on some episodes from the creator and cast, deleted scenes, gag reels and behind - the - scenes featurettes . </P>

When does haley tell nathan she's pregnant in season 4