<Tr> <Th> Season </Th> <Th> Timeslot (ET) </Th> <Th> Episodes </Th> <Th_colspan="2"> First aired </Th> <Th_colspan="2"> Last aired </Th> <Th> TV season </Th> <Th> Rank </Th> <Th> Avg . viewers (millions) </Th> <Th> 18--49 rating (average) </Th> </Tr> <Tr> <Th> Date </Th> <Th> Viewers (millions) </Th> <Th> Date </Th> <Th> Viewers (millions) </Th> </Tr> <Tr> <Td> </Td> <Td> Tuesday 10: 00 pm (1--2, 11) Tuesday 9: 00 pm (3--10, 12--18) </Td> <Td> 18 </Td> <Td> September 20, 2016 (2016 - 09 - 20) </Td> <Td> 10.07 </Td> <Td> March 14, 2017 (2017 - 03 - 14) </Td> <Td> 12.84 </Td> <Td> 2016--17 </Td> <Td> 6 </Td> <Td> 14.70 </Td> <Td> 4.6 / 16 </Td> </Tr> <Tr> <Td> </Td> <Td> Tuesday 9: 00 pm </Td> <Td> 18 </Td> <Td> September 26, 2017 (2017 - 09 - 26) </Td> <Td> 12.94 </Td> <Td> TBA </Td> <Td> TBD </Td> <Td> 2017--18 </Td> <Td> TBD </Td> <Td> TBD </Td> <Td> TBD </Td> </Tr>

Who played jack's father in this is us