<Table> <Tr> <Th_colspan="2"> The First 48 </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Documentary </Td> </Tr> <Tr> <Th> Narrated by </Th> <Td> Dion Graham </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of seasons </Th> <Td> 16 </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 346 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> John X . Kim </Li> <Li> Alexis Robie </Li> <Li> Laura Fleury </Li> <Li> Peter Tarshis </Li> </Ul> </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 42 minutes </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> ITV Studios America </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> A&E </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> 480i (SDTV) 1080i (HDTV) </Td> </Tr> <Tr> <Th> Original release </Th> <Td> June 3, 2004 (2004 - 06 - 03)--present </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Related shows </Th> <Td> <Ul> <Li> After the First 48 </Li> <Li> The First 48: Missing Persons </Li> <Li> The Killer Speaks </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> The First 48 </Th> </Tr>

Who does the narration for the first 48