Question: Barnabas Collins is a character in the serial that first aired on what date?

Context paragraphs:
Sitamgar (TV series): Sitamgar (Urdu: ستمگر‎ ) is a Pakistani romantic drama serial directed by "Fahim Burney", broadcasting on Hum TV every Thursday between October 2012 to March 2013.  The serial is written by "Sarwat Nazeer", stars Angeline Malik, Nadia Hussain, Sajal Ali, Azfar Rehman and Ali Afzal.  Serial was first aired on 18 October 2012 and last aired on 7 March 2013.

The Adventures of Robinson Crusoe (TV series): The Adventures of Robinson Crusoe (French: "Les Aventures de Robinson Crusoë" ) was a French children's television drama series made by Franco London Films (a.k.a. FLF Television Paris).  The show was first aired in Germany in October 1964 under the title "Robinson Crusoe" as four 90-minute episodes by co-producers ZDF television, and syndicated in the USA the same year.  It was first aired in the UK in 1965 as a 13-part serial.  This English dubbed version produced by Henry Deutschmeister also had a new musical soundtrack composed by Robert Mellin and P. Reverberi which gave the serial a more strident and appealing theme tune than the music composed by Georges Van Parys for the French/German original.  The production concentrated not only on events on the island but included Crusoe's other adventures, told in flashback.

Wolfblood: Wolfblood is a British–German fantasy teen drama television series targeted at a young adult audience.  Created by Debbie Moon, it is a co-production between CBBC and ZDF/ZDFE.  The television series revolves around the life of the species known as wolfbloods.  They are creatures that have enhanced senses and look like humans but at can turn at will into wolves.  Their transformation is uncontrolled during a full moon, and they are at their weakest during "the dark of the moon", at a new moon.  The television series focuses on their daily life and the challenges that they face to hide their secret.  Each series has new characters and concepts and overall the television series has an interesting storyline.  To date, five complete series have aired.  Series 1 first aired on 10 September 2012 and concluded on 22 October 2012 and consisted of 13 episodes.  Series 2 first aired on 9 September 2013 and concluded on 21 October 2013 and again consisted of 13 episodes.  Series 3 first aired on 15 September 2014 and concluded on 27 October 2014 and also consisted of 13 episodes.  Series 4 first aired on 8 March 2016 and concluded on 13 April 2016 and this time consisted of 12 episodes.  A fifth season was announced on 6 June 2016 and began airing on 27 February 2017 and concluded on 1 May 2017 with 10 episodes.

Julia Hoffman: Julia Hoffman is a fictional character played by Grayson Hall in the 1966 ABC soap opera "Dark Shadows".  A self-serving and conniving doctor in the fields of psychology and rare blood disorders and head of the Windcliff Sanitarium, she moved into Collinwood and discovered the vampire Barnabas Collins.  Initially, Julia represented a threat to Barnabas' undead existence, but eventually she became one of his most staunch allies.  Together, Julia and Barnabas worked to assist the Collins family in the past, present, future, and in Parallel Time.

Dark Shadows: Dark Shadows is an American Gothic soap opera that originally aired weekdays on the ABC television network, from June 27, 1966, to April 2, 1971.  The show depicted the lives, loves, trials and tribulations of the wealthy Collins family of Collinsport, Maine, where a number of supernatural occurrences take place.

Angelique Bouchard Collins: Angelique Bouchard is a fictional character from the gothic horror-soap opera and film "Dark Shadows", in which she is the main antagonist.  She is primarily portrayed as a powerful witch driven by her vacillating love and hatred for Barnabas Collins.

House of Dark Shadows: House of Dark Shadows is a 1970 feature-length horror film directed by Dan Curtis, based on his "Dark Shadows" television series.  Filming took place at Lyndhurst Estate in Tarrytown, New York, with additional footage at nearby Sleepy Hollow Cemetery.  In this film expansion, vampire Barnabas Collins (Jonathan Frid) searches for a cure for vampirism so he can marry a woman who resembles his long-lost fiancée Josette (Kathryn Leigh Scott).  Curtis followed this movie one year later with "Night of Dark Shadows", another expansion of the "Shadows" franchise, dealing with the witch Angelique.

Sang-e-Mar Mar: Sang-e-Mar Mar (Urdu: ‎ ) (meaning " Heart of Marble") (previously titled Daasi) is a Pakistani romantic drama serial that was first aired on Hum TV on 1 September 2016.  It stars Sania Saeed, Mikaal Zulfiqar and others.  It is the fourth appearance of Noman Ijaz on Hum TV after his 2013 appearance in the serial "Rehaai".  It is the second appearance of Uzma Hassan and with Tipu Sharif after their appearance in the 2015 serial "Mohabbat Aag Si" and Uzma Hassan's second appearance with Mikaal Zulfiqar as well after their 2014 serial Tum Meray He Rehna.

Barnabas Collins: Barnabas Collins is a fictional character, a featured role in the ABC daytime serial "Dark Shadows", which aired from 1966 to 1971.  Barnabas is a 175-year-old vampire in search of fresh blood and his lost love, Josette.  The character, originally played by Canadian actor Jonathan Frid, was introduced in an attempt to resurrect the show's flagging ratings, and was originally to have only a brief 13-week run.  He was retained due to his popularity and the program's quick spike in ratings, and became virtually the star of the show.

Jonathan Frid: John Herbert "Jonathan" Frid (December 2, 1924 – April 14, 2012) was a Canadian theatre, television, and film actor, known for having played the role of vampire Barnabas Collins on the gothic television soap opera "Dark Shadows".

Supporting paragraphs: Barnabas Collins Dark Shadows
Answer: June 27, 1966