<Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Followed by </Th> <Td> Relocation, Relocation </Td> </Tr> <P> Location, Location, Location is a Channel 4 property programme, presented by Kirstie Allsopp and Phil Spencer and produced by IWC Media, part of the RDF Media Group . The reality show follows Allsopp and Spencer as they try to find the perfect home for a different set of buyers each week . It first aired in May 2000 . </P> <P> The 2007 series had a major revamp . The opening titles logo was changed and the format of the show altered . Instead of only one couple per week looking for a house in a town, two couples with different tastes look for a house in the same city with the presenters going back and forth to the different househunters . Each episode was extended to 60 minutes from the original 30 . The first episode featured Glasgow and the second Sheffield . </P>

When did location location start on channel 4
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