§ Mr. Salmond
To ask the Chancellor of the Duchy of Lancaster how many public information films on the effects of cold weather on plumbing have been shown in the cinema or on television since 1966, indicating who produced the films and when they were shown on television and cinema screens. 
§ Mr. Willetts
Many energy efficiency campaigns have been run since 1966. All have contained information on the effects of cold weather on pipes. Details of these campaigns cannot be provided without incurring disproportionate cost.