Question: What public broadcasting service has headquarters located in the largest city in South Tyrol?

Context paragraphs:
For Your Home: For Your Home is a home and garden show hosted by Vicki Payne airing on the Public Broadcasting Service and distributed by American Public Television.  The series also airs reruns on World Harvest Television.  You can currently see this show on Create TV which is part of the PBS (Public Broadcasting Service).

Thai Public Broadcasting Service: The Thai Public Broadcasting Service (Thai: องค์การกระจายเสียงและแพร่ภาพสาธารณะแห่งประเทศไทย ; rtgs: "Ongkan Krachai Siang Lae Phrae Phap Satharana Haeng Prathet Thai" ), or TPBS (Thai: ส.ส.ท. ) , is a public broadcasting service in Thailand.  It was established by the Thai Public Broadcasting Service Act, BE 2551 (2008), which came into force on 15 January 2008.  Under this act, TPBS holds the status of state agency with legal personality, but is not a government agency or state enterprise.

Maine Public Broadcasting Network: The Maine Public Broadcasting Network (abbreviated MPBN and branded Maine Public) is a state network of public television and radio stations located in the state of Maine in the United States.  It is operated by the Maine Public Broadcasting Corporation, which holds the licenses for all the Public Broadcasting Service (PBS) and National Public Radio (NPR) stations licensed in the state.  MPBN has studios and offices in Portland, Lewiston and Bangor.

Bolzano: Bolzano ( ; ] ,    or ] ; German: "Bozen" (formerly "Botzen"), ] ; Ladin: "Balsan" or "Bulsan"; Latin: "Bauzanum" ) is the capital city of the province of South Tyrol in northern Italy.  With a population of 105,713 (2013), Bolzano is also by far the largest city in South Tyrol.

Oregon Public Broadcasting: Oregon Public Broadcasting (OPB) is the primary television and radio public broadcasting network for most of Oregon as well as southern Washington.  OPB consists of five full-power television stations, dozens of VHF or UHF translators, and over 20 radio stations and frequencies.  Broadcasts include local programming as well as television programs from the Public Broadcasting Service (PBS) and American Public Television (APT), and radio programs from NPR, Public Radio International, and the BBC World Service, among other distributors.  Its headquarters and television studios are based in Portland.

Public Broadcasting Act of 1967: The Public Broadcasting Act of 1967 () set up public broadcasting in the United States, establishing the Corporation for Public Broadcasting (CPB) and, eventually, the Public Broadcasting Service (PBS), and National Public Radio (NPR).

WJSP-TV: WJSP-TV 23 (DTV 28.1/2/3), part of the Georgia Public Broadcasting (GPB) Public Broadcasting Service (PBS) member Public broadcasting network, serves Columbus, Georgia and the surrounding west-central Georgia and far east-central Alabama region.  The transmitter and radio antenna are located just south of Warm Springs on the same radio tower as WJSP-FM 88.1.  It's one of only two GPB stations actually licensed to a major Georgia city, the other being WVAN-TV in Savannah.  However, to conform to GPB's pattern of naming two cities in station IDs, the station's shown as "WJSP-DT 28, Columbus/Warm Springs".

ITV (Thailand): iTV was a television station in Thailand owned by ITV Public Company Limited, a unit of Shin Corporation.  Thailand's first UHF channel, the station was started in 1995 when the company was granted a 30-year concession by the Office of the Permanent Secretary to the Prime Minister's Office to operate a free-to-air television station in the Ultra High Frequency (UHF) spectrum at 510-790 MHz (from Channel 26 to 60).  After a lengthy dispute over unpaid concession fees to the Prime Minister's Office, iTV was taken in 2007 over by the government's Public Relations Department and its name was changed to Thai Independent Television (TITV).  Following a previously unannounced order of Thailand's Public Relations Department delivered the same day, the station closed down operations at the crack of dawn on January 15th, 2008.  In accordance with the Public Broadcasting Service Act, the channel's frequency was assigned to the Thai Public Broadcasting Service, or Thai PBS.

Rundfunk Anstalt Südtirol: The Rundfunkanstalt Südtirol (Italian: "Radiotelevisione Azienda Speciale", Ladin: "Radiotelevijion- Azienda per Südtirol") is a public broadcasting service for the majority German-speaking province of South Tyrol, Italy whose purpose is to relay programmes from the public broadcasters of Austria, Germany, German and Romansh Switzerland.  The agency has its headquarters in the province's capital city Bolzano.

Nederlandse Publieke Omroep (organization): The foundation Nederlandse Publieke Omroep (literally "Dutch Public Broadcasting", abbr.  NPO; in English: Dutch Public Broadcasting [Agency] or Dutch Foundation for Public Broadcasting) is a Dutch public broadcasting organization that administers the public broadcasting service in the Netherlands.

Supporting paragraphs: Rundfunk Anstalt Südtirol Bolzano
Answer: The Rundfunkanstalt Südtirol