[1][2][3] In 1954, Columbia released a single of excerpts from Dry Rot, a farce from London's Whitehall Theatre by John Chapman (which later became a film of the same name).

The record featured Slater alongside Brian Rix, Basil Lord, Cicely Paget-Bowman, Diana Caderwood and Chapman, with Jackie Brown on the Hammond organ.

[2] In 1959, Slater participated on a studio cast recording of My Fair Lady, singing "With a Little Bit of Luck" and "Get Me to the Church on Time" as Eliza Doolittle's father Alfred.

[4] Slater narrated the National Coal Board's Mining Review documentary series, and was known on television for his presenter role opposite popular children's puppets Pinky and Perky during the 1960s, as a story-teller on Jackanory and as Det.

[1] Slater sustained life-threatening injuries as a result of an air crash in France in 1946 and sporadic bouts of ill health hampered his career.