<Tr> <Td> </Td> <Td_colspan="1"> 9 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 21, 2015 (2015 - 09 - 21) </Td> <Td> May 12, 2016 (2016 - 05 - 12) </Td> <Td> 20.36 </Td> <Td> </Td> <Td> 5.8 / 19 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 10 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 19, 2016 (2016 - 09 - 19) </Td> <Td> May 11, 2017 (2017 - 05 - 11) </Td> <Td> 18.99 </Td> <Td> </Td> <Td> 4.9 / 19 </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 11 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 25, 2017 (2017 - 09 - 25) </Td> <Td> May 10, 2018 (2018 - 05 - 10) </Td> <Td> 18.63 </Td> <Td> </Td> <Td> 4.4 </Td> <Td> 5 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 12 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 24, 2018 (2018 - 09 - 24) </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> TBA </Td> </Tr>

Where do they film the big bang theory