[Mobhack]

Oh - an embedded advert by the presenter?.

Easily skipped over.

1) note that your presenter is in "advertising" mode
2) immediately pause your youtube video
3) now use the mouse to browse along the video's track line till the advert seems over by looking at the preview picture shown above the track line. Then, click on that part of the track line
4) and finally, press play and continue watching actual content

easy peasy, lemon squeezy.