<Table> <Tr> <Th colspan="2"> Season </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th> Average U.S. viewers ( millions ) </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 18 </Td> <Td colspan="1"> September 21 , 2016 ( 2016 - 09 - 21 ) </Td> <Td> March 15 , 2017 ( 2017 - 03 - 15 ) </Td> <Td> 6.54 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 22 </Td> <Td colspan="1"> September 26 , 2017 ( 2017 - 09 - 26 ) </Td> <Td> May 8 , 2018 ( 2018 - 05 - 08 ) </Td> <Td> 4.11 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 13 </Td> <Td colspan="1"> September 25 , 2018 ( 2018 - 09 - 25 ) </Td> <Td> TBA </Td> <Td> TBA </Td> </Tr> </Table>
<Table> <Tr> <Th colspan="2"> Season </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th> Average U.S. viewers ( millions ) </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 18 </Td> <Td colspan="1"> September 21 , 2016 ( 2016 - 09 - 21 ) </Td> <Td> March 15 , 2017 ( 2017 - 03 - 15 ) </Td> <Td> 6.54 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 22 </Td> <Td colspan="1"> September 26 , 2017 ( 2017 - 09 - 26 ) </Td> <Td> May 8 , 2018 ( 2018 - 05 - 08 ) </Td> <Td> 4.11 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 13 </Td> <Td colspan="1"> September 25 , 2018 ( 2018 - 09 - 25 ) </Td> <Td> TBA </Td> <Td> TBA </Td> </Tr> </Table>
how many episodes in lethal weapon series 3
how many episodes in lethal weapon series 3
13
13