The Truth Behind the Tartan Whether you live in Surbiton or Scrabster, there is a sporting chance that you have a Granny called MacLeod or Macpherson or Mac-' Something '. Do you care? An American tycoon came to Scotland - to find to his delight that he was a long-lost Clan Chieftain. Another Clan Chieftain is a West Indian living in Jamaica. So what price the Clan system in Scotland today? Is it a sentimental memory of Jacobite days -or a tartan-tinted tourist trap? Magnus Magnusson meets the people who keep the Clan idea alive. Written and produced by MAGNUS MAGNUSSON. BBC Scotland (Postponed from 30 May)