Daily schedules that give the radio and television programming between 5:00 P.M. and 12:00 A.M. for the Mutual, ABC, CBS, and NBC networks. Gives ratings for each program and sponsors when applicable. Includes weekly daytime programming schedules beginning in May 1950. Includes both network and local programs. These schedules were used by NBC sales staff for the purposes of selling NBC network airtime to advertisers and sponsors. Beginning in Dec. 1952 the back pages of the schedules feature interesting tidbits of information on NBC programs to entice potential sponsors. Some schedules have handwritten corrections.