While Miss Ewell is conducting the band in the music lesson, Peter Craven sticks his head around the door and calls her Ivy Benson. This is in reference to the musician and bandleader Ivy Benson, who led an all-female swing band Ivy Benson's All-Girl Band during the 1940's and 1950's.
Part 2 starts with an unusual ad-cap with the series name in black against a grey background. This may have been in keeping with the black-and-white cine-film that Hedges and the pupils are making.