<Tr> <Td> BAFTA TV Awards </Td> <Td> Reality & Constructed Factual </Td> <Td> Won </Td> <Td> </Td> </Tr> <P> The first series had an average figure of 3.1 million viewers per episode . The average viewing figure for the second series was 2.9 million . </P> <Table> <Tr> <Th_colspan="2"> Series </Th> <Th> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td> Series 1 </Td> <Td> 6 </Td> <Td> 5 May 2014 </Td> <Td> 2 June 2014 </Td> </Tr> <Tr> <Td> </Td> <Td> Series 2 </Td> <Td> 13 </Td> <Td> 8 April 2015 </Td> <Td> 21 May 2015 </Td> </Tr> <Tr> <Td> </Td> <Td> Series 3 </Td> <Td> 7 </Td> <Td> 28 May 2016 </Td> <Td> 3 May 2016 </Td> </Tr> <Tr> <Td> </Td> <Td> Series 4 </Td> <Td> 6 </Td> <Td> 23 April 2017 </Td> <Td> May 2017 </Td> </Tr> <Tr> <Td> </Td> <Td> Series 5 </Td> <Td> TBA </Td> <Td> 2018 </Td> <Td> 2018 </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Series </Th> <Th> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr>

How many episodes in bear grylls the island
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