Question: What was the 1978 BBC musical drama serial that Rosemary Martin acted in?

Context paragraphs:
Maan (TV series): Maan (Urdu: ‎ ; lit.  "Proud") is a Pakistani family drama serial that premiered on Hum TV on 19 October 2015, airing a weekly episode on Mondays.  Due to drama serial Mann Mayal, Maan is airing on Fridays instead of Mondays from 29 January 2016.  It is directed by Amin Iqbal and written by Shehla Shakoor.  Drama serial is produced by Abdullah Kadwani and Asad Qureshi of 7th Sky Productions and Meekal Zulfiqar who also served as the head of the project and Hira Anwar of Hum TV.

Extras: The Mango People: Extras (The Mango People) is a 2011 Pakistani sitcom drama serial.  The drama serial is directed by "Danish Nawaz" and production by "Anila Danish".  Drama serial is broadcasting on Hum TV every Saturday at 7:30 PM starring "Danish Nawaz" and Fatima Effendi.  It was released on 11 June 2011.

Hum Award for Best Drama Serial Popular: The Hum Award for Best Drama Serial Viewers Choice or Popular is one of the Hum Awards of Merit presented annually by the Hum Television Network and Entertainment Channel (HTNEC) to producers working in the drama industry.  Best Drama Serial Viewers Choice/Popular is considered the most important of the Hum Awards, as it represents all the directing, acting, music composing, writing, editing and other efforts put forth into a drama.  The nominations are selected by Hum membership as a whole while winners are selected by Online voting of Public thus called Viewers Choice or Popular.  This category is the equivalent to the Hum Award for Best Drama Serial - Jury, decide by Hum membership and selected panel of Jury by Hum.

Rosemary Martin: Rosemary Martin (17 December 1936 – 14 August 1998) was an English actress, born in Birmingham.  She appeared in dozens of films from 1964 to 1998 and is also known for television roles including Mrs. Partridge in "Last of the Summer Wine", Vera in "Oh No, It's Selwyn Froggitt! ", Marjorie in "Pennies from Heaven", Miss Weber in "The Insurance Man", Renie Fox in "Fox" and Verna Johnson in "Tenko".

Parosi: Parosi (English: Neighbour) was a Pakistani drama serial aired on NTM in the 90's.  The drama was written by the famous writer Haseena Moin and directed by Raana Sheikh.  It was shot at beautiful locations in Islamabad and Murree.  The drama serial starred Khalida Riyasat, Marina Khan, Badar Khalil, Ali Ejaz, Saleem Sheikh and Jamal Shah.  This was Khalida Riyasat's last drama serial as she died soon after working in this drama and the long play "Ab Tum Ja Sakte Ho".

Ankahi: Ankahi was an Urdu drama serial broadcast by Pakistan Television Corporation (PTV) in 1982.  The drama was written by Haseena Moin and directed by Shoaib Mansoor and Mohsin Ali.  The drama serial featured an ensemble star cast including Shehnaz Sheikh, Shakeel, Javed Sheikh, Saleem Nasir, Jamshed Ansari, Behroze Sabzwari, Badar Khalil, Qazi Wajid, Azra Mansoor, Khalid Nizami, Arshad Mehmood, Tabassum Farooqui and Faisal Bilal.  "Ankahi" was one of the most popular drama serial in the early 1980s in Pakistan.

Hum Award for Best Drama Serial: The Hum Award for Best Drama Serial or Hum Award for Best Drama Serial Jury is one of the Hum Awards of Merit presented annually since the awards debuted in 2013, by the Hum Television Network and Entertainment Channel (HTNEC) to production company of their producers working in the television industry and is the only category in which every member is eligible to nominate for.  Best Drama Serial is considered the most important of the Hum Awards, as it represents all the directing, acting, music, writing, and other efforts put forth into a drama.  Consequently, Best Drama is the third last final award besides Best Actor and Actress and the conclusion of the annual Hum Awards ceremony.  As of 3rd Hum Awards, there have been 22 dramas nominated for the Best Drama Serial award.  This category is the equivalent to the Hum Award for Best Drama Serial - Popular, decide by public voting.

Vanity Fair (1967 TV serial): Vanity Fair is a BBC television drama serial adaptation of William Makepeace Thackeray's novel of the same name broadcast in 1967 (the first drama serial in colour produced by the BBC).  It starred Susan Hampshire as Becky Sharp, for which she received an Emmy Award in 1973.  The serial was also broadcast in 1972 in the US on PBS television as part of "Masterpiece Theatre".

Pennies from Heaven (TV series): Pennies From Heaven is a 1978 BBC musical drama serial written by Dennis Potter.  The title is taken from the song "Pennies from Heaven" written by Johnny Burke and Arthur Johnston.  It was one of several Potter serials (another being "The Singing Detective") to mix the reality of the drama with a dark fantasy content, and the earliest of his works where the characters burst into extended performances of popular songs.

Barkat Siddiqui: Barkat Siddiqui is a veteran Pakistani television director, producer and actor.  He is best known for his directing drama serial "Ahsaas" on PTV in 2001 and "Mujhe Khuda Pe Yaqeen Hai" on Hum TV in 2013 for which he earned nominations as Best Director Drama Serial and Best Drama Serial at 2nd Hum Awards.

Supporting paragraphs: Rosemary Martin Pennies from Heaven (TV series)
Answer: Pennies From Heaven