TELEVISION

Wednesday, October 15 WEDNESDAY NIGHT MOVIE (ABC, 9-11 p.m.)* Everyone's changing partners in Divorce, American Style (1967), which stars Dick Van Dyke, Debbie Reynolds, Van Johnson, Jason Robards Jr. and Jean Simmons.

Thursday, October 16 DANIEL BOONE (NBC, 7:30-8:30 p.m.). A former slave (Roosevelt Grier), now chief of the Tuscarora Indian tribe, gives ole Dan'l a hand in snatching a British cannon. "Rosy" will be back in other episodes. THURSDAY NIGHT MOVIES (CBS, 9-11:20 p.m.). Natalie Wood, Christopher Plummer, Roddy McDowall, Robert Redford and Ruth Gordon ramble through the Hollywood of the '30s in Inside Daisy Clover (1966). IT TAKES A THIEF (ABC, 10-11 p.m.). Fred Astaire also takes on a recurrent guest-star role as the retired master thief and father of Alexander Mundy (Robert Wagner). He gives his son a little assistance in capturing a counterfeiter in "The Great Casino Caper."

Saturday, October 18 WIDE WORLD OF SPORTS (ABC, 2-4 p.m.). Lew Alcindor's regular season N.B.A. debut with the Milwaukee Bucks is covered live from Milwaukee as his team takes to the basketball court against the Detroit Pistons. N.C.A.A. GAME (ABC, 4-7:30 p.m.). California v. U.C.L.A. from Los Angeles.

Sunday, October 19

HEIDI (NBC, 7-9 p.m.). Tune in and see if this repeat does exactly what last year's presentation did when it cut off the exciting finish of the A.F.L. football game that preceded it.

FRANK SINATRA JR. WITH FAMILY AND FRIENDS (CBS, 9-10 p.m.). The family includes Dad and Sister Nancy, and the friends are Jack Benny, Sammy Davis Jr., Arte Johnson and the Doodletown Pipers on this musical-variety special.

THE FORSYTE SAGA (NET, 9-10 p.m.). The third episode in the lives of this complex clan.

Monday, October 20

NET JOURNAL (NET, 9-10 p.m.). "Matador" is a film portrait of El Cordobes, Spain's magnetic and successful bullfighter.

THEATER

On Broadway

FORTY CARATS. Julie Harris stars in this frothy French farce that pleads for a single standard of judgment on age disparity in marriage.

PLAY IT AGAIN, SAM. Woody Allen plays Woody Allen in his comedy about a neurotic young man who is rejected even by the girls of his fantasies.

Off Broadway

SALVATION. Begotten by Hair, this new musical is an aesthetically retarded child that epitomizes Modcom — the commercial exploitation of modernity without regard for dramatic art. Like other Modcom productions that peddle the youth cult. Salvation is replete with cynical simulations of innocence, freedom and dissent.

ADAPTATION—NEXT. Elaine May's Adaptation and Terrence McNally's Next are a happy combination of funny one-acters. Both plays are directed by Miss May with her usual wit and comic perception.

NO PLACE TO BE SOMEBODY. Charles Gordone's story of black-white and black-black relations is flawed by melodrama; yet the play ticks with menace and is unexpectedly and explosively funny.

OH! CALCUTTA! is a revue that looks suspiciously like burlesque, featuring lots of bodies but not much substance.