Petula Clark touches Harry Belafonte's arm

In 1968, when Petula Clark touched Harry Belafonte's arm during a duet, it was the first time a white woman had touched a black man on US television.

The sponsor insisted it be cut from the programme, but the programme makers refused.

Louise Hidalgo speaks to the producer of the programme, Steve Binder.

(Photo: Harry Belafonte. Credit: Alan Meek/Express/Getty Images)