Jaclyn Smith stars as Florence Nightingale (NBC...

Jaclyn Smith stars as Florence Nightingale (NBC on Sunday at 8 p.m.) in a new three-hour TV movie about the 19th-Century aristocrat who sacrificed everything to revolutionize the nursing profession.

Also airing at 8 p.m. Sunday on ABC is a repeat of the delightful Superman II, in which our hero (Christopher Reeve) must at last confront his invincibility, choosing between the woman he loves, Lois Lane (Margot Kidder), and the world he has vowed to protect.

And Channel 11 on Sunday offers two showings of that holiday perennial, Easter Parade, with Judy Garland and Fred Astaire, at 4 and 8 p.m.

At 9 p.m. Monday NBC presents the first part of Wallenberg: A Hero’s Story, in which Richard Chamberlain stars as the Swedish diplomat who saved the lives of more than 120,000 Hungarian Jews but who was arrested at the end of World War II by the Russians, who to this day refuse to clear up the mystery of his fate. Part II airs Tuesday at the same hour.

Airing opposite Wallenberg Monday at 9 p.m. on ABC is Young Doctors in Love, a freewheeling, gleefully raunchy 1982 comedy that’s lots closer to “Porky’s” than to “The Hospital” and which marks the theatrical feature directorial debut of TV veteran Garry Marshall.

The absorbing A Woman Called Golda, in which Ingrid Bergman made her final appearance, playing Israel’s prime minister, returns in two parts, airing Tuesday and Wednesday at 8 p.m. on Channel 13.

Tuesday at 8:30 p.m. on CBS brings a repeat of the excellent Coal Miner’s Daughter, which earned Sissy Spacek an Oscar for her portrayal of country music star Loretta Lynn. The heart of this film is Lynn’s relationship with her husband, played with strength and humor by Tommy Lee Jones.

Nicolas Surovy has the title role in Stark (CBS on Wednesday at 9 p.m.), a new TV movie in which he plays a hot-tempered, two-fisted detective from Kansas who takes on the Las Vegas underworld.

The remainder of the week’s evening movies are vintage fare, but among them are that outrageous satire on television, Network (Channel 5 Thursday at 8 p.m.); The Days of Wine and Roses (Channel 13 Thursday at 8 p.m. and again Saturday at 11 p.m.), a harrowing study of alcoholism starring Jack Lemmon and Lee Remick; Seven Days in May (Channel 13 Saturday at 6 p.m.), an absorbing melodrama about an attempt by the military to overthrow the government, and A Place in the Sun (Channel 9 Saturday at 10 p.m.), George Stevens’ impressive film of Theodore Dreiser’s “An American Tragedy” starring Montgomery Clift, Elizabeth Taylor and Shelley Winters.

Among the films airing evenings on the pay/cable services: Dodsworth (Cinemax on Sunday at 6); Never Cry Wolf (Disney on Sunday at 8, again Friday at 9); Beyond Reasonable Doubt (ON-TV on Monday at 9, Movie Channel on Thursday at 6); Betrayal (Z Channel on Monday at 9, SelecTV on Tuesday at 7); Oklahoma! (Cinemax on Monday at 10:15); The Browning Version (Cinemax on Tuesday at 6:30); Modern Times (Disney on Tuesday at 7); Sweet Smell of Success (Z on Tuesday at 7); Easy Rider (Movie Channel on Saturday at 7); Local Hero (Z on Saturday at 7); the 1937 version of A Star Is Born (A&E; on Saturday at 9).