10/11 Kim Cattrall sets out to discover what happened to her grandfather after he disappeared.
BBC Two except Wales, Yorkshire
11/11 Martin Freeman investigates the paternal side of his family history.
9/11 Actor and comedian David Mitchell goes in search of his Scottish roots.
BBC HD & BBC Two England, Northern Ireland only
BBC Two Scotland
8/11 TV presenter Kate Humble investigates her RAF test pilot and prisoner-of-war grandfathers.
BBC HD & BBC Two except Wales, Yorkshire