Season 1 ITV1 , 1981 Season 2 ITV1 , 1982 - 1983 Season 3 ITV1 , 1983 - 1984 Season 4 ITV1 , 1984 - 1985 Season 5 ITV1 , 1985 Season 7 ITV1 , 1987 - 1988 Season 8 ITV1 , 1988 - 1989 Season 15 ITV1 , 2006