Although 6/8 time has six quaver beats in the bar, the beat is given by two dotted crotchets.
The video shows the speed of the quaver beat then the speed of the dotted crotchet beat. The dotted crotchet beats are on quavers one and four. The clip then shows some common rhythms as examples of 6/8 time. It takes a specific look at music written in 6/8 time, including tunes by Alicia Keys and Queen.