RADIO: Program Preview, Feb. 26, 1951

For the week starting Friday, Feb. 23. Times are E.S.T., subject to change.

Metropolitan Opera (Sat. 2 p.m., ABC). Der Rosenkavalier, with Stevens, Steber, Baum.

NBC Symphony (Sat. 6:30 p.m., NBC). Soloist: Violinist Joseph Szigeti.

New York Philharmonic (Sun. 1 p.m., CBS). All-Russian program.

Theatre Guild on the Air (Sun. 8:30 p.m., NBC). Father of the Bride, with Spencer Tracy, Elizabeth Taylor, Joan Bennett.

Kings Row (Mon. 3:15 p.m., CBS). New series based on the Henry Bellamann novel.

Red Cross Rally (Tues. 10.30 p.m., all radio & TV networks). President Truman, Bob Hope, Bing Crosby, Judy Garland.

NBC Presents (Wed. 10:30 p.m., NBC). Conrad Aiken's Mr. Arcularis.

Hallmark Playhouse...