“Miami Vice’s” Don Johnson takes on a...

“Miami Vice’s” Don Johnson takes on a real challenge in the TV movie remake of The Long Hot Summer (Sunday and Monday at 9 p.m. on NBC), assuming the role of the drifter so well-played by Paul Newman in the 1958 Martin Ritt film adapted by Harriet Frank Jr. and Irving Ravetch from “The Hamlet,” William Faulkner’s novel of small-town Southern life. Others in this new version, which was directed by Stuart Cooper from Rita Mae Brown and Dennis Turner’s adaptation of the 1958 script, are Jason Robards, Cybill Shepherd (pictured on the cover), Judith Ivey and Ava Gardner.

When an emotionally shattered Vietnam veteran finds that no one listens to or cares about the plight of his fellow vets, he comes up with a plan to take over Central Park to protest this indifference. That’s the plot of The Park Is Mine, a new movie premiering Sunday at 8 p.m. on Home Box Office cable. Tommy Lee Jones stars as the vet who takes a stand for his beliefs. Helen Shaver and Yaphet Kotto co-star.

I Want to Keep My Baby, in which Mariel Hemingway plays a pregnant teen-ager, launches a week of worthy TV movies airing in Channel 5’s 8 p.m. time slot. Others on the schedule are Portrait of a Stripper with Lesley Ann Warren on Tuesday, Anatomy of a Seduction with Susan Flannery on Wednesday, Dawn: Portrait of a Teen-age Runaway on Thursday, Sweet Hostage with Linda Blair and Martin Sheen on Friday, and Columbo: Dagger of the Mind, with Peter Falk on Saturday.

With the baseball playoffs under way this week on NBC, Channel 4 will have some local time to fill following the games, and has booked several interesting movies. Will: G. Gordon Liddy (Channel 4 Tuesday at 8 p.m.), a 1982 TV movie based on the best seller by the convicted Watergate break-in leader, stars Robert Conrad in an impersonation that is engaging within its narrow limits but amounts to a one-dimensional performance that leaves us fundamentally no better informed than we were when we began the two hours. (That the film was cut from three hours may have something to do with its seeming lack of point of view.)

Kristy McNichol stars in the new TV movie Love, Mary (CBS Tuesday at 9 p.m.), the true story of an illiterate, reform school teen-ager who turns her life around and becomes an award-winning physician after it is discovered that she is suffering from dyslexia. Matt Clark and Piper Laurie play her supportive parents.

Coming up Tuesday at 10 p.m. on Channel 28 is Steven Okazaki’s sobering, understated and very important documentary Unfinished Business, focusing on three Japanese-American men who resisted evacuation to internment camps at the outbreak of World War II and continue today the struggle not only to clear their names but also to get the infamous Executive Order 9066 declared unconstitutional.

The widely praised six-part “Masterpiece Theatre” presentation of A Town Like Alice surfaces Wednesday at 8 p.m. and Thursday at 9 p.m. on Channel 4, and one wonders whether it will be possible to preserve something of the qualities that made this dramatization of Nevil Shute’s World War II novel so superb. Helen Morse is a sprightly English lass and Bryan Brown a strapping Australian who meet and fall in love as Japanese prisoners in Malaya.

Gary Goleman is The Kid With the 200 I.Q. (Channel 4 Friday at 8 p.m.), a standard 1983 TV movie which finds 13-year-old genius Coleman coping with college life.

In An American Werewolf in London (Channel 4 Saturday at 8 p.m.), director John Landis juxtaposes humor and gore in so thoroughly outrageous a way that from one moment to the next you can’t tell whether you’re going to laugh or cringe. The film is not remotely for the squeamish or the very young, but many will consider it a delirious treat that develops surprising poignancy. David Naughton and Griffin Dunne are a couple of nice guys from New York hiking through the North of England--and soon regret it. Thanks to Rick Baker’s horrendously convincing makeup and Malcolm Campbell’s razor-sharp editing, there’s no real preparation for the jolts when they start coming (although most are wisely completed in the imagination). Presumably, not only the grisliness but some fairly steamy sex and some strong language will be toned down for TV.

Out of the Darkness (CBS Saturday at 9 p.m.) is a new TV movie starring Martin Sheen as Ed Zigo, the New York homicide detective who helped bring David Berkowitz, the “Son of Sam” serial killer, to justice while coping with his own personal tragedy. Hector Elizondo, Matt Clark and Jennifer Salt also star, and Jud Taylor directed from a script by Tom Cook.

Although not as taut and fully developed as the 1956 remake, Alfred Hitchcock’s original 1934 The Man Who Knew Too Much is nevertheless good fun. It airs Saturday at 10 p.m. on Channel 28. Channel 28 is also continuing its 1 p.m. “Movie City Showcase Matinee” (Monday through Fridays through Oct. 18). This week’s lineup is impressive: The Lady Vanishes (Monday), The Stranger (Tuesday), Detour (Wednesday), The Southerner (Thursday), Hiroshima Mon Amour (Friday).

Selected evening pay TV/cable fare: The Seduction of Joe Tynan (HBO Sunday at 10); Iceman (Cinemax Monday at 6); Get Crazy (Z Monday at 7, Movie Channel Monday at 10); Love on the Run (Lifetime Monday at 8); Bizet’s Carmen (Z Monday at 9); Monsieur Verdoux (Disney Monday at 10:30, Saturday at 10:50); Evil Under the Sun (Cinemax Tuesday at 6); Secret Honor (Z Tuesday at 7:30); That Obscure Object of Desire (ON & SelecTV Tuesday at 9); The Dresser (Cinemax Wednesday at 6); Flying Down to Rio (Z Wednesday at 7:30); Memoirs of a Survivor (Lifetime Wednesday at 8); Mike’s Murder (Movie Channel Wednesday at 8); Desperately Seeking Susan (ON & SelecTV Thursday at 9 for an additional fee); Way Out West (Cinemax Friday at 8); Lumiere (Lifetime Friday at 8); The Eiger Sanction (WGN Friday at 9:30); Beyond the Limit (Z Saturday at 7).