<Li> Steven Robertson as Ian </Li> <Li> Steven Weber as Abel Carnacki </Li> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th> Title </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td> Candle Cove </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> October 11, 2016 (2016 - 10 - 11) </Td> <Td> November 15, 2016 (2016 - 11 - 15) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td> No - End House </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> September 20, 2017 (2017 - 09 - 20) </Td> <Td> October 25, 2017 (2017 - 10 - 25) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td> Butcher's Block </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> February 7, 2018 (2018 - 02 - 07) </Td> <Td> March 14, 2018 (2018 - 03 - 14) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td> The Dream Door </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> 2019 (2019) </Td> <Td> 2019 (2019) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th> Title </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr>

How many episodes of channel zero butcher's block are there