Daytime broadcast stations : hearings before a Subcommittee of the Committee on Interstate and Foreign Commerce, House of Representatives, Eighty-seventh Congress, first and second sessions on H.R. 2745, H.R. 3334, H.R. 3469, H.R. 4695, H.R. 4749, H.R. 4830, H.R. 5626, and H.R. 10121, bills to amend the Communications Act of 1934, with respect to the hours of operation of certain broadcasting stations : H.R. 10523, a bill to amend subsection (c) of section 303 of the Communications Act of 1934, with respect to the hours of operation of certain broadcasting stations, July 18, 19, 20, 1961 ; April 16, 17, 1962.