Yes Rob - my extensive research on the subject (cough)
"On the evening of Saturday 17th March 1958, the British independent television channel ATV, broadcast the first of a series of six new plays by Wolf Mankowitz, entitled The Killing Stones. The plays were set in South Africa, and to add local colour, the series used a tune by a group of African musicians by the name of Elias and the Zig Zag Jive Flutes, entitled Tom Hark. Unexpectedly, the record of this tune, (Columbia DB 4109 Tom Hark / Ry Ry), became a best seller, staying in the UK charts for 14 weeks, and reaching No.2. It was unexpected because this type of music was previously more or less unknown in the UK, although kwela or tin whistle jive was increasingly popular in South Africa at this time. Tom Hark stands, even now, as one of the very few records of authentic vernacular music to penetrate so high into the UK charts"