Pleas Sir! was a fantastically good comedy series which ran on London Weekend Television between 1968 and 1972.
It was written by John Esmonde and Bob Larney, who went onto write “The Good Life”, amongst other gems.
It starred John Alderton, Deryk Guyler, Noel Howlett and the priceless Joan Sanderson. It also made stars of the “pupils” who are on glorious display in the clip below the opening titles here: