Question: "Time Enough at Last" is the eighth episode of the American television anthology series "The Twilight Zone", the short story appeared in the January 1953 edition of If, an American science fiction magazine, launched in March 1952 by which company?

Context paragraphs:
In His Image: "In His Image" is an episode of the American television anthology series "The Twilight Zone" aired on January 3, 1963.  This was the first episode of the fourth season.  Each episode was expanded to an hour (with commercials) from "In His Image" until "The Bard'".  The fourth season is the only season of "The Twilight Zone" to have each episode one hour long.  In this episode, a man finds his hometown is suddenly inconsistent with his memories of it and begins experiencing irrational urges to commit murder, two mysteries which together lead him to an unpleasant discovery about his identity.

Time Enough at Last: "Time Enough at Last" is the eighth episode of the American television anthology series "The Twilight Zone".  The episode was adapted from a short story written by Lynn Venable (pen name of Marilyn Venable).  The short story appeared in the January 1953 edition of the science fiction magazine "If: Worlds of Science Fiction" about seven years before the television episode first aired.  "Time Enough at Last" became one of the most famous episodes of the original "Twilight Zone" and has been frequently parodied since.  It is "the story of a man who seeks salvation in the rubble of a ruined world" and tells of Henry Bemis , played by Burgess Meredith, who loves books, yet is surrounded by those who would prevent him from reading them.  The episode follows Bemis through the post apocalyptic world, touching on such social issues as anti-intellectualism, the dangers of reliance upon technology, and the difference between aloneness (solitude) and loneliness.

If (magazine): If was an American science-fiction magazine launched in March 1952 by Quinn Publications, owned by James L. Quinn.

I Sing the Body Electric (The Twilight Zone): "I Sing the Body Electric" is episode 100 of the American television anthology series "The Twilight Zone".  The script was written by Ray Bradbury, and became the basis for his short story of the same name, published in 1969, itself named after a Walt Whitman poem.  Although Bradbury contributed several scripts to "The Twilight Zone", this was the only one produced.

Walking Distance: "Walking Distance" is episode five of the American television anthology series "The Twilight Zone".  It originally aired on October 30, 1959 on CBS.  The episode was listed as the ninth best episode in the history of "The Twilight Zone" by "Time".

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.

The Silence (The Twilight Zone): "The Silence" is episode 61 of the American television anthology series "The Twilight Zone".  The plot of this episode was based in part on Anton Chekhov's "The Bet".  It originally aired on April 28, 1961 on CBS, and was the first of only three "Twilight Zone" episodes (the others being season three's "The Shelter" and season five's "The Jeopardy Room") to feature a story without any supernatural or science fiction elements.  It does, however, contain one of the series' signature twist endings.

Third from the Sun: "Third from the Sun" is episode 14 of the American television anthology series "The Twilight Zone".  It is based on a short story of the same name by Richard Matheson which first appeared in the first issue of the magazine "Galaxy Science Fiction" in October 1950.

The Bard (The Twilight Zone): "The Bard" is an episode of the American television anthology series "The Twilight Zone".  It was the final episode of "The Twilight Zone" to be one hour long.  A direct satire of the American television industry, the episode concerns an inept screenwriter who, through the use of black magic, employs William Shakespeare as his ghostwriter.

The Jeopardy Room: "The Jeopardy Room" is episode 149 of the American television anthology series "The Twilight Zone", which originally aired on April 17, 1964 on CBS.  It was one of only two "Twilight Zone" episodes (the other being season two's "The Silence") to feature a story without any supernatural or science fiction elements.  It does, however, contain one of the series' signature twist endings.

Supporting paragraphs: Time Enough at Last If (magazine)
Answer: Quinn Publications