<Tr> <Td> </Td> <Td> </Td> <Td> 23 </Td> <Td> September 11, 1978 </Td> <Td> June 8, 1979 </Td> </Tr> <P> Warner Home Video released a 6 - episode Television Favorites collection on February 28, 2006 . Due to the success of this release, Warner released the Complete first Season on DVD in Region 1 on June 12, 2007 . </P> <P> On May 7, 2014, it was announced that Shout! Factory had acquired the rights to the series . Ultimately, they released Welcome Back, Kotter: The Complete Series on DVD in Region 1 on August 26, 2014, and have since released the second, third, and fourth seasons as individual sets . </P> <Table> <Tr> <Th> DVD Name </Th> <Th> Ep #</Th> <Th> Release Date </Th> </Tr> <Tr> <Td> The Complete First Season </Td> <Td> 22 </Td> <Td> June 12, 2007 </Td> </Tr> <Tr> <Td> The Complete Second Season </Td> <Td> 23 </Td> <Td> January 20, 2015 </Td> </Tr> <Tr> <Td> The Complete Third Season </Td> <Td> 27 </Td> <Td> May 26, 2015 </Td> </Tr> <Tr> <Td> The Complete Fourth Season </Td> <Td> 23 </Td> <Td> August 18, 2015 </Td> </Tr> <Tr> <Td> The Complete Series </Td> <Td> 95 </Td> <Td> August 26, 2014 </Td> </Tr> </Table>

When did john travolta leave welcome back kotter