TAM Television Audience Measurement
... Network Top 20 and ratings for the regions Week ending July 7, 1968 A Tamratlng It tM prctntp of MU capable of receiving both inJipiiidMt television and BBC transmissions actually tunad. In a point In tima. to any par ticular programme. Tha position of programma In TAM's Top Twenty Nt* workad programmes It determined by tha total number of homai viewing tha programme. II a particular ...