For almost 35 years, Yorkshire Television's on-screen identity always revolved around the use of the station logo: the chevron. This yellow symbol was seen on nearly all of Yorkshire Television's idents and presentation. The first symbol used was a black and white chevron, formed by slit-scan techniques and accompanied by an orchestral version of the tune "On Ilkla Moor Baht 'at", a famous Yorkshire folk song. This music was later to become the station's jingle. This ident continued until Yorkshire Television officially commenced their colour broadcasts in November 1969.