For the week starting Wednesday, Feb. 22. Times are E.S.T., subject to change.
Antarctica: The Third World (Sun. 4. p.m., NBC). An on-the-spot documentary of the Antarctic expedition.
Panorama (Sun. 7:30 p.m., NBC). Imogene Coca.
Playwrights '56 (Tues. 9:30 p.m., NBC). Horton Foote's Flight, starring Kim Stanley, Ruth Hussey.
Metropolitan Opera (Sat. 2 p.m., ABC). Rigoletto, with Warren, Conley, Peters, Tozzi.
Philadelphia Orchestra (Sat. 9 :05p.m., CBS). Music by Mozart, Schubert.
Biographies in Sound (Tues. 9 :05 p.m., NBC). W. C. Fields....