For the week starting Friday, Oct. 20. Times are E.S.T., subject to change.
Pulitzer Prize Playhouse (Fri. 9 p.m., ABC-TV). Abe Lincoln in Illinois, with Raymond Massey and Betty Field.
Your Show of Shows (Sat. 9 p.m., NBC-TV). Guest M.C.: Madeleine Carroll.
Showtime ... U.S.A. (Sun. 7:30 p.m., ABC-TV). Gertrude Lawrence and Herbert Marshall in a scene from Susan and God.
Colgate Comedy Hour (Sun. 8 p.m., NBC-TV). Starring Fred Allen.
Theatre Guild on the Air (Sun. 8:30 p.m., NBC). Hemingway's A Farewell to Arms, with Joan Fontaine and Humphrey Bogart.
President Truman (Tues. 11:30 a.m., all networks). Foreign policy address on the U.N.'s fifth anniversary.