Program Preview

For the week starting Friday, Aug. 6. Times are E.D.T., subject to change.

The Olympics. Experts discuss and summarize the games daily on all networks.

NBC University Theater (Fri. 9 p.m., NBC). Dramatization of Hemingway's A Farewell to Arms.

Down in the Valley (Sat. 3 p.m., NBC). Radio premiere of Kurt Weill's American folk opera.

Cross-Section, U.S.A. (Sat. 3:30 p.m., CBS). Farm experts discuss the question: "Are We Making the Best Use of Our Natural Resources?"

NBC Symphony (Sat. 6:30 p.m., NBC). Guest conductor: Massimo Freccia.

Living--1948 (Sun. 4:35 p.m., NBC). The Sun and You, a documentary ranging from physical history to the $2,000,000 suntan lotion business.

Hoover Homecoming (Tues. 4:45 p.m., Mutual). The former President in a 74th-birthday address from his home town, West Branch, Iowa.

Grand Opening of WJZ-TV (Tues. 7 p.m., ABC Television). Previews of some of the programs and stars of Manhattan's sixth television station.

Berkshire Festivail Concert (Tues. 9:30 p.m., ABC). Final Berkshire broadcast, with Koussevitzky and an all-Tchaikovsky program.

The Hambletonian (Wed. 5:15 p.m., CBS). Joe Palmer's tape recorded description of the trotting classic from Goshen, N.Y.

Presidential Straws in the Wind (Wed. 8:30 p.m., CBS Television). Guests:Elmo Roper, Lyman Bryson.

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