* At noon, "Opening the Door to Diversity," live from Littleton, Colo., on Court TV.

* Tonight, Game 3 of the World Series on WRC.

* "Attack of the 50 Foot Monstermania" on AMC.

* Part 2 of "Wonders of the African World" on WETA.

* And a documentary on the Friars Club on Cinemax.

Sports

Major League Baseball (CC). World Series, Game 3: Atlanta Braves at New York Yankees (Channel 4 at 8).

Public Broadcasting

Wonders of the African World With Henry Louis Gates Jr. In Part 2, the West African kingdoms of Asante and Dahomey are explored, plus a visit to Ethiopia. Two hours (Channel 26 at 9; conclusion airs tomorrow night at 9).

Halloween Programming

Buffy the Vampire Slayer (CC) and her college chums attend a Halloween fraternity party and end up in a true house of horrors (Channel 50 at 8).

That '70s Show (CC). The gang views "The Texas Chainsaw Massacre," and then visits a burned-down grammar school (Channel 5, 8:30).

Party of Five (CC). The Salingers throw a Halloween party, but all Bailey can think about is Sarah (Channel 5 at 9).

Dharma & Greg (CC). The ghost of a deceased neighbor makes an unexpected visit (Channel 7 at 9).

Attack of the 50 Foot Monstermania (CC). Bill Mumy (Will Robinson on "Lost in Space") surveys the history and evolution of movie monsters, showcasing such favorites as King Kong, Godzilla and Mothra. One hour (American Movie Classics at 9). This special kicks off AMC's month-long monster film festival, "Monsterfest '99."

Cable Specials

Opening the Door to Diversity. This live one-hour program, hosted by Al Roker and Catherine Crier, features 27 Littleton and Denver area middle school students discussing tolerance and diversity (Court TV at noon; repeats at 7 and 11 p.m.).

Let Me In, I Hear Laughter: A Salute to the Friars. The history of the Friars Club is told, with never-before-seen footage and interviews with members including Milton Berle, Ed McMahon, Alan King and Phyllis Diller. One hour (Cinemax at 7).

Newsmagazines

60 Minutes II (CC) interviews British author Gitta Sereny, who has written about the world's worst villains (Channel 9 at 9).

48 Hours (CC) reports on the travails of gambling (Channel 9 at 10).