FRIDAY The Blue and the Gray (CBS, 8-11 p.m.; Saturday and Sunday, too): Repeat of three-part 1982 miniseries re-creating the War between the States, based on a concept by Bruce Catton. SATURDAY
World Series of Golf (CBS, 1:30-3 p.m.; Sunday 3 p.m.): Live golf, from the Firestone Country Club in Akron, Ohio.
Gala of Stars (PBS, 8-11 p.m.): Repeat, with Beverly Sills acting as host, including Grace Bumbry, Kiri Te Kanawa, and many others. Be prepared for lots of interruptions for pledges to PBS. Give. SUNDAY
Iran: Behind the Veil (WTBS/cable, 5:05-7:05 p.m.): Mary Alice Williams reports on the Islamic republic, from the Shah till now. MONDAY
Last Roundup of the Elephants (PBS, 8-9 p.m.): Repeat of Survival Special filmed on location in Sri Lanka and India.
The Parching Winds of Somalia (PBS, 9:30-11 p.m.): Portrait of an African people who have withstood the ravages of environment and invasion, then the pressures of a new independence.
Of Mice and Men (NBC, 9-11 p.m.): Repeat of 1981 TV version of John Steinbeck classic, with Robert Blake and Randy Quaid. TUESDAY
West 57th (CBS, 10-11 p.m.): Disco-beat newsmagazine sends four bewildered reporters out to search for ``serious'' sensational stories. If you like People magazine, . . . WEDNESDAY
Mark Russell Comedy Special (PBS, 9-9:30 p.m.): Madcap Mark satirizes today's and tomorrow's events.
Agatha Christie's `Sparkling Cyanide' (CBS, 9-11 p.m.): Repeat of Anthony Andrews/Deborah Raffin 1983 TV special, sans Miss Marple.
Comedy with Monteith & Rand (9:30-10 p.m.): Suave and yet frenetic, this way-out comedy team is at its best at improvisations.
Check local listings for all programs, especially those on PBS, where local option often results in varying days as well as times.