Question: What was the name of the contraversial episode with racial overtones that aired as part of the American television anthology series created by Rod Serling?

Context paragraphs:
Darkroom (TV series): Darkroom is an American television thriller anthology series produced by Universal Television which aired on ABC from November 27, 1981 to January 15, 1982.  As an anthology horror/thriller series it was similar in style to Rod Serling's "Night Gallery."  Each 60-minute episode featured two or more stories of varying length with a new story and a new cast, but each of the episode wraparound segments was hosted by James Coburn.  Among the performers who appeared on the series were Steve Allen, Esther Rolle, Helen Hunt, Claude Akins, Richard Anderson, Lawrence Hilton-Jacobs, Carole Cook, David Carradine, Billy Crystal, Pat Buttram, Brian Dennehy, Lawrence Pressman, Dub Taylor, Rue McClanahan, Lloyd Bochner, Ronny Cox, R. G. Armstrong, and June Lockhart.

A Stop at Willoughby: "A Stop at Willoughby" is episode 30 of the American television anthology series "The Twilight Zone".  Rod Serling cited this as his favorite story from the first season of the series.

Center Stage (TV series): Center Stage is an American television anthology series that aired in 1954 on the American Broadcasting Company as a summer replacement for "The Motorola Television Hour".  It aired on the American Broadcasting Company (ABC) on alternate weeks from June 1, 1954 to September 21, 1954, swapping airings with the "U.S. Steel Hour".  The series was produced by Herbert Brodkin.  There were nine episodes, one of which was written by Rod Serling.  Among its stars were Walter Matthau, Charles Coburn, Lee Marvin, and Vivian Blaine.

The Last Night of a Jockey: "The Last Night of a Jockey" is an episode of the American television anthology series "The Twilight Zone".  In this episode, a diminutive jockey's wish to be tall is granted.  The only actor in this entire episode is Mickey Rooney.  Rod Serling wrote this episode specifically for Rooney.

Night Gallery: Night Gallery is an American anthology series that aired on NBC from 1969 to 1973, featuring stories of horror and the macabre.  Rod Serling, who had gained fame from an earlier series, "The Twilight Zone", served both as the on-air host of "Night Gallery" and as a major contributor of scripts, although he did not have the same control of content and tone as he had on "The Twilight Zone".  Serling viewed "Night Gallery" as a logical extension of "The Twilight Zone", but while both series shared an interest in thought-provoking dark fantasy, more of "Zone"' s offerings were science fiction while "Night Gallery" focused on horrors of the supernatural.

A Game of Pool (1961 The Twilight Zone): "A Game of Pool" is episode 70 of the American television anthology series "The Twilight Zone".  It originally aired on October 13, 1961, on CBS.  According to Rod Serling, it is "the story of the best pool player living and the best pool player dead."

The Encounter (Twilight Zone): "The Encounter" is episode 151 of the American television series "The Twilight Zone".  First broadcast on May 1, 1964, its racial overtones caused it to be withheld from syndication in the U.S. On January 3, 2016, the episode was finally reaired as part of Syfy's annual "Twilight Zone" New's Year Eve marathon.

The Twilight Zone: The Twilight Zone is an American television anthology series created by Rod Serling.  The episodes are in various genres, including psychological horror, fantasy, science fiction, suspense, and psychological thriller, often concluding with a macabre or unexpected twist, and usually with a moral.  A popular and critical success, it introduced many Americans to common science fiction and fantasy tropes.  The original series, shot entirely in black and white, ran on CBS for five seasons from 1959 to 1964.

The Monsters Are Due on Maple Street: "The Monsters Are Due on Maple Street" is episode 22 in the first season of the American television anthology series "The Twilight Zone".  The episode was written by Rod Serling, the creator-narrator of the series.  It originally aired on March 4, 1960 on CBS.  In 2009, "TIME" named it one of the ten best "Twilight Zone" episodes.

Forbidden Area: Forbidden Area is a 1956 Cold War thriller novel by Pat Frank.  Its plot involves Soviet sleeper agents intended to sabotage the U.S. war effort, who have been trained by classical conditioning to have an American "cover identity" that they can remember as well as their own.  Rod Serling adapted it for the debut episode of the American television anthology series "Playhouse 90", directed by John Frankenheimer and starring Charlton Heston, Diana Lynn, Vincent Price, Victor Jory and Charles Bickford.

Supporting paragraphs: The Encounter (Twilight Zone) The Twilight Zone
Answer: The Encounter