<Tr> <Th> Portrayed by </Th> <Td> Lennard Pearce (1981--1984) Phil Daniels (2010--2011) </Td> </Tr> <Tr> <Th> Duration </Th> <Td> 1981--1984 (OFAH) 2010--2011 (Rock & Chips) </Td> </Tr> <Tr> <Th> First appearance </Th> <Td> "Big Brother" </Td> </Tr> <Tr> <Th> Last appearance </Th> <Td> "Thicker than Water" </Td> </Tr>

How many episodes was grandad in only fools and horses