Transcripts of the hearings held from March 28-30, 1973 are presented. Following opening statements by Senators Pastore and Baker, texts of the Senate bills S.1090 and S.1228 are published. The former sought to amend the Communications Act of 1934, to extend certain authorizations for the Corporation for Public Broadcasting (CPB) and for certain construction grants for noncommercial educational television and radio broadcasting facilities, and for other purposes. The purpose of the latter was to authorize appropriations for fiscal year 1974 for CPB. In addition, testimony from witnesses is recorded, along with additional information received from other individuals not present at the hearings. The report concludes with an evaluation of Public Broadcasting Service (PBS) programing by program managers, with PBS budgets and with PBS programing evaluation reports for the years 1971-72 and 1972-73. (PB)