You will Watch The Scooby-Doo Show Season 3 Episode 6 online for free episodes with HQ / high quality. Stream cartoons The Scooby-Doo Show Episode 30 A Highland Fling with a Monstrous Thing. The gang travels to Scotland to visit their friend Aggie MacDuff. She says people have left her castle in fear of the ghost of her great grandfather. It also seems the ghost plays bagpipes to call on the Loch Ness Monster to help him.