It's semi-final Saturday in the BDO World Darts Championship and commentator John Gwynne joins Mark Walton to preview the action.

We have two superb matches in prospect as surprise package and Lakeside debutant Jeff Smith takes on fourth seed Scott Mitchell and Glen Durrant faces three-time BDO World Champion Martin Adams on the other side of the draw.

John talks us through his thoughts in each and offers his correct score predictions.

Enjoy.

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