When a dealer sells or rents TV receiving equipment, under The Wireless Telegraphy Act 1967 (as amended) the dealer is required to notify TV Licensing within 28 days of each transaction, providing full details of the purchaser or hirer.
This includes the sale or rental of any new or second-hand TVs, VCRs, DVD recorders, Set-top boxes, PCs with broadcast (TV) cards and PC TV cards
They must inform TV Licensing of the purchaser or hirer's name and address and the address and postcode of where the equipment will be installed. Also whether the equipment is colour or black and white.