It's strange how so many TV series that were popular in their day fade from view and this is one of them. This series and its sequels amassed 137 episodes over an 8 year run (1969-1977) and the series just gets better with every series.
Also, RaspberryLucozade is incorrect to state that this was the first London Weekend Television sitcom to be broadcast in colour. The first series of DITH was the first to be recorded in colour, but it ended a few months before ITV formally began colour transmissions on 15th November 1969. This makes Curry and Chips the first LWT sitcom to be broadcast completely in colour (with series 2 of Please Sir straddling the switch).
Also, RaspberryLucozade is incorrect to state that this was the first London Weekend Television sitcom to be broadcast in colour. The first series of DITH was the first to be recorded in colour, but it ended a few months before ITV formally began colour transmissions on 15th November 1969. This makes Curry and Chips the first LWT sitcom to be broadcast completely in colour (with series 2 of Please Sir straddling the switch).