Streets of Justice (NBC Sunday at 9...

Streets of Justice (NBC Sunday at 9 p.m.), a new TV movie, stars John Laughlin as a young auto worker eager to take the law into his own hands when the murderers of his wife and infant son, a pack of brutal bikers, are released on a legal technicality. Also starring are Robert Loggia as a police detective and Cristina Raines as an assistant D . A., both sympathetic with Laughlin’s plight.

Meanwhile, ABC’s 9 p.m. Sunday movie slot is filled with the conclusion of the North and South miniseries.

An Early Frost (NBC Monday at 9 p.m.), a new TV movie, becomes the first film to deal with AIDS. Aidan Quinn stars as a successful young attorney whose family struggles to cope with the realization that he is dying of the so-far incurable disease. Ben Gazzara and Gena Rowlands play his parents, Sylvia Sidney, his grandmother.

On a lighter note, Kenny Rogers returns to TV movies in the new Wild Horses (CBS Tuesday at 9 p.m.). Rogers is cast as a former rodeo champion who briefly escapes his humdrum blue-collar existence by joining a wild horse roundup. Pam Dawber, Ben Johnson and Richard Farnsworth are among the supporting players.

Robert Epstein and Richard Schmeichen’s Academy Award-winning documentary The Times of Harvey Milk (Wednesday at 8 p.m. on Channel 50, 9 p.m. on Channels 28 and 24, and 10 p.m. on Channel 15) is a powerful, comprehensive yet incisive study of the political career and assassination of one of the nation’s first openly gay elected officials. Following The Times of Harvey Milk on Channels 28 and 24 at 10:30 p.m. is Lucy Winer’s 30-minute Silent Pioneers, a documentary on elderly gays and lesbians.

A hard-edged, brutal yet absorbing gangster movie set primarily in Los Angeles, The Mechanic (Channel 13 Wednesday at 8 p.m.) stars Charles Bronson as a veteran professional assassin who takes on as a protege cynical, nervy young Jan-Michael Vincent. A suspense entertainment with strong existentialist undertones, The Mechanic was tersely directed by Michael Winner from Lewis John Carlino’s expertly crafted script.

Bronson also stars in Breakheart Pass (Channel 13 Friday at 8 p.m.), which is essentially a “Murder on the Orient Express” set down in the ruggedly beautiful Old West--but played too broadly for its own good. Lucien Ballard was the cinematographer and Yakima Canutt handled the second unit, but the contributions of these two film-making legends are undercut by lots of gratuitous violence, trite dialogue and shallow characterizations.

Much more fun is Don Siegel’s Coogan’s Bluff (Channel 5 Friday at 8 p.m.), which turns loose Arizona lawman Clint Eastwood in Manhattan to show those big-city cops how the job is done.

Like its predecessors, Rocky III (CBS Saturday at 9 p.m.) is a movie in the brightest primary colors, with thundering sound and lots of inspirational music. What’s amazing is how well Sylvester Stallone has got that underdog champion fighter Rocky Balboa up on his feet for another bout, this time with none other than Mr. T., cast as that villain of the ring Clubber Lane, who’s not only larger than life but larger than Rocky himself. To take on Clubber, Rocky has enlisted the help of his former nemesis, Apollo Creed (Carl Weathers). Once again, Stallone, in his big and gaudy way, has made lots of people perfectly happy.

In a rather different key is this week’s Channel 28 Saturday 10 p.m. movie, Hitchcock’s civilized classic, The Lady Vanishes.

Selected evening cable fare: The Rose (Movie Channel Sunday at 8); Body Double (Cinemax at 9 Sunday and Friday); Coal Miner’s Daughter (Z at 9 Sunday and Wednesday, HBO Friday at 8); Top Hat (Z Monday at 7); King Kong (Cinemax Monday at 8); Electric Dreams (Cinemax Tuesday at 6); The Body Snatcher (Z Tuesday at 7); The Big Fix (WGN Tuesday at 9:30); Squizzy Taylor (Movie Channel Tuesday at 10); Repo Man (Z Wednesday at 7:30); Garbo Talks (HBO Wednesday at 8); All the King’s Men (WTBS Wednesday at 9:20); Breaker Morant (Movie Channel Thursday at 8); After the Fox (WOR Friday at 6); Zigzag (WGN Friday at 9:30); Fade to Black (Movie Channel Friday at 10); Two Weeks in Another Town (Movie Channel Saturday at 7); The Red Shoes (Disney Saturday at 9).