Question: When did the comic, with which "Plug" merged, first run?

Context paragraphs:
First Run Features: First Run Features is an independent film distribution company based in New York City.  First Run was founded in 1979 by a group of filmmakers in order to advance the distribution of independent film and is one of America's largest independent distributors of documentaries and art films, releasing 12 to 15 films a year in theaters nationwide and 40 to 60 titles on DVD and VOD annually.  First Run distributes a large number of documentaries and foreign films, including many films about LGBT issues, Jewish experience, and political and human rights issues.

Tomorrow Midnight: Tomorrow Midnight is a mass-market paperback collection of comic adaptations of eight short science fiction stories by Ray Bradbury, gathered from the pages of the EC Comics comic books of the 1950s.  It is one of five EC collections published by Ballantine Books between 1964 and 1966 (the others are "Tales from the Crypt", "The Vault of Horror", "Tales of the Incredible" and "The Autumn People"), and one of two made up of comic adaptations of Bradbury's work (the other is "The Autumn People").  The presentation of the material is problematic at best, since the color comic book pages are represented in black and white and broken into horizontal strips to fit the mass-market paperback format.  Still, the collections are historically important.  They were the first attempt to resurrect the EC comics, only a decade after public outcry had driven them off the racks.  They were the first introduction of those comics to a generation of readers too young to remember them in their first run.

Buttercup Festival: Buttercup Festival is a webcomic created by poet and author David Troupes.  The comic's first run, from February 17, 2000 to January 10, 2005, began as a feature in the University of Massachusetts Amherst newspaper, "The Daily Collegian", where Troupes was an editor during his college years.  It was written under the pseudonym "Elliott G. Garbauskas."  At various times during its first run it was published in the newspaper, on its own web site, and in other student newspapers and independent periodicals.  The second series ran from January 28, 2008 to November 24, 2013.

Oleg Zherbetskyy: Oleg Zherbetskyy (born August 15, 1986) is a Ukrainian luger who has competed since 2003.  He competed in the men's doubles event at the 2006 Winter Olympics in Turin by completing the first run of the event, but not starting the second run to a severe crash at the end of the first run.

Funny Wonder: Funny Wonder is the name of two British comics published by Amalgamated Press.  The first was published from 30 July 1892-25 May 1901 this comic was more satirical in nature like other early comics during its first run, also in this first run it absorbed another comic called Wonder in 1893.  A second series ran from 26 December 1914-16 May 1942 when it merged with "Wonder" which in turn merged with "Radio Fun" in 1953.  This new comic was aimed much more at children than the previous "Funny Wonder".  In 1915 "Funny Wonder" began to have Charlie Chaplin appear on the cover.  "Funny Wonder" was the first of Amalgamated Press' comics to have its own annual which ran from the edition dated 1935 until the one dated 1941, when it was ended due to the effects of World War II.

Rainbow and Magic Lantern Cinemas: Rainbow Cinemas and Magic Lantern Theatres operate movie theatres in Canada.  The Rainbow Cinemas chain was founded in the 1990s in Saskatoon, Saskatchewan, while the Magic Lantern Theatres chain was founded in 1984 in Edmonton, Alberta.  Rainbow Cinemas originally concentrated on suburban multiplex second run theaters, but later added several first run locations, with lower than average admission pricing.  Magic Lantern focused on first run theaters both in cities and small towns.  The two chains merged and are now based in Edmonton.  In May 2016 a strategic decision was made to sell all of the Ontario cinemas except the one in Cobourg to Imagine Cinemas from Windsor, Ontario.  Magic Lantern and Rainbow now operate 9 cinemas with a total of 36 screens across Canada.

The Beezer: The Beezer (called The Beezer and Topper for the last 3 years of publication) was a British comic that ran from (issues dates) 21 January 1956 to 21 August 1993.

Plug (comics): Plug was a British comics magazine that ran for 75 issues from 24 September 1977 until 24 February 1979, when it merged with "The Beezer".  It was edited by Ian Gray.

Newport Nocturne: The Shropshire Star Newport Nocturne is Britain's first flood lit road bicycle race and is biennially held in Newport, Shropshire.  The race was first run in 1970 at a distance of 109 mi .  The race was first run as a night race under flood lights in 1989 and returned in 1990 and 1991 in this format.  The economic recession of the early 1990s forced the event to be cancelled in 1992.

Markus Vogel: Markus Vogel (born January 12, 1984) is a World Cup alpine ski racer from the Canton of Nidwalden in Switzerland, who specializes in the Slalom discipline.  He made his World Cup debut in January 2008 in his home race at Adelboden where he skied out of the first run.  A week later in the slalom in Wengen, Vogel managed to qualify for the second run in 29th place from a start number of 62 but was unable to finish the second run.  He did not finish the first run of his other four races in 2008.  In fact it was over a year until Vogel picked up his first World Cup points with a 19th-place finish in Kitzbühel.  The 2010 season was another disappointing one, with Vogel spending most of his time in FIS Races and European Cup level.  After this period, Vogel came back strongly at the end of the next season and earned himself a place in the Swiss World Championship team in 2011.  In 2012, he was Switzerland's top slalom skier with the injury to Marc Gini.  Vogel was also selected to the World Championship team in 2013, where he finished 17th in the Slalom.

Supporting paragraphs: Plug (comics) The Beezer
Answer: 21 January 1956