Question:  Albert Simon Hirshberg worked for an American daily newspaper that was converted to what in 1981?

Context paragraphs:
The Boston Globe: The Boston Globe (sometimes abbreviated as The Globe) is an American daily newspaper founded and based in Boston, Massachusetts since its creation by Charles H. Taylor in 1872.  The newspaper has won a total of 26 Pulitzer Prizes as of 2016, and with a total paid circulation of 245,824 from September 2015 to August 2016, it is the 25th most read newspaper in the United States.  "The Boston Globe" is the oldest and largest daily newspaper in Boston.

Tyrone Daily Herald: The Tyrone Daily Herald is an American daily newspaper serving Tyrone, Pennsylvania, and region – northern Blair County and nearby portions of Centre and Huntingdon Counties.  The newspaper has been running for years, the latter as a daily.

Washington Times-Herald: The Washington Times-Herald (1939–1954) was an American daily newspaper published in Washington, D.C. It was created by Eleanor "Cissy" Patterson of the Medill–McCormick–Patterson family (long-time owners of the "Chicago Tribune" and the "New York Daily News" and founding later "Newsday" on New York's Long Island) when she bought the "Washington Times" and the "Herald" from the syndicate newspaper publisher William Randolph Hearst (1863–1951), and merged them.  The result was a "24-hour" newspaper, with 10 editions per day, from morning to evening.

Silver City Daily Press and Independent: The Silver City Daily Press and Independent is a six-day daily newspaper that serves the Silver City, New Mexico area of the United States.  Founded in 1896 as the weekly "Silver City Independent", the paper was purchased by the Ely family in 1934.  In 1935, Colonel Clyde Ely renamed the paper the "Silver City Daily Press and Independent" and converted it into a daily newspaper.  In 2007, the newspaper received the Mark Twain Award from the New Mexico Associated Press Managing Editors for their outstanding member cooperation in 2006.  Since the 2008 recession, the newspaper has outsourced its printing, increased its online presence, discontinued its membership in the Associated Press and joined an 11-member New Mexico newspaper exchange.  The name, archives and website of the Daily Press were purchased by the Silver City Independent Publishing Company, LLC, in April, 2014, marking its first non-Ely family ownership since its conversion to a daily newspaper.

The Palm Beach Post: The Palm Beach Post is an American daily newspaper serving Palm Beach County in South Florida, and the Treasure Coast area.  As of 2012 it was the 80th largest daily newspaper in the United States and the 7th largest in Florida.

The Daily News of Newburyport: The Daily News of Newburyport is an American daily newspaper covering northeastern Essex County, Massachusetts, USA.  The newspaper is published Monday through Saturday evenings by Eagle-Tribune Publishing Company, a subsidiary of Community Newspaper Holdings Inc.

Boston Herald: The Boston Herald is an American daily newspaper whose primary market is Boston, Massachusetts and its surrounding area.  It was founded in 1846 and is one of the oldest daily newspapers in the United States.  It has been awarded eight Pulitzer Prizes in its history, including four for editorial writing and three for photography before it was converted to tabloid format in 1981.  The "Herald" was named one of the "10 Newspapers That 'Do It Right' in 2012 by "Editor & Publisher".

The MetroWest Daily News: The MetroWest Daily News is an American daily newspaper published in Framingham, Massachusetts, serving the MetroWest region of suburban Boston.  It is the flagship newspaper of Community Newspaper Company, a division of GateHouse Media.

Kalantar: Kalantar (কালান্তর) is a daily Bengali-language newspaper issued from Kolkata, India.  It is the organ of the West Bengal State Council of the Communist Party of India.  It was published as a weekly newspaper since 1965; 'Kalantar' converted to a daily newspaper in the late 1960s.  And have a separate weekly as it is.  The header of the 'Kalantar' daily was designed by the legend film maker-artist Satyajit Ray himself.  Among the early editors, veteran communist leader Somnath Lahiri, Bhabani Sen, Jyoti Dasgupta, Prabhat Dasgupta, Prof. Gautam Chattopadhyay were there.  From the single-color edition it is now publishing as a four-color daily newspaper.  In the autumn, Kalantar publish a festive 'Sharadiyo' edition in the book form as like as other daily newspapers in Kolkata.

Al Hirshberg: Albert Simon Hirshberg, (c.1910 - 1973), frequently credited as Al Hirshberg, was a Boston-based author and sportswriter who was primarily active in the 1930s - 1960s.  He is best known as the co-author of Jimmy Piersall's 1955 autobiography titled "Fear Strikes Out: The Jimmy Piersall Story", that was later made into the 1957 film "Fear Strikes Out", starring Anthony Perkins.  He also wrote several books on the history of the Boston Red Sox baseball team, and co-wrote dozens of other people's memoirs, often, but not exclusively, about baseball players and/or Boston area sports figures and teams.  He worked for "The Boston Post" from 1930-1952 and the "Boston Herald" from 1964-1968.

Supporting paragraphs: Al Hirshberg Boston Herald
Answer: tabloid format