Answer the question from the given passage. Your answer should be directly extracted from the passage, and it should be a single entity, name, or number, not a sentence.
Example: Passage: Martin Luther married Katharina von Bora, one of 12 nuns he had helped escape from the Nimbschen Cistercian convent in April 1523, when he arranged for them to be smuggled out in herring barrels. Suddenly, and while I was occupied with far different thoughts, he wrote to Wenceslaus Link, “the Lord has plunged me into marriage. At the time of their marriage, Katharina was 26 years old and Luther was 41 years old. Question: In a letter who did Luther credit for his union with Katharina?
Example solution: the Lord
Example explanation: The paragraph clearly states that, Luther has credited the Lord for his union with Katharina, hence the Lord is correct answer.

Problem: Passage: ABC dominated the American television landscape during the 1970s and early 1980s (by 1980, the three major networks represented 90% of all prime-time television viewership in the U.S.). Several flagship series debuted on the network during this time including Dynasty, an opulent drama from Aaron Spelling that became a hit when it premiered as a midseason series in 1981, five months before Spelling's other ABC hit Charlie's Angels ended its run. The network was also propelled during the early 1980s by the continued successes of Happy Days, Three's Company, Laverne & Shirley and Fantasy Island, and gained new hits in Too Close for Comfort, Soap spinoff Benson and Happy Days spinoff Mork & Mindy. In 1981, ABC (through its ABC Video Services division) launched the Alpha Repertory Television Service (ARTS), a cable channel operated as a joint venture with the Hearst Corporation offering cultural and arts programming, which aired as a nighttime service over the channel space of Nickelodeon. Question: What channel did ABC launch in 1981 that focused on cultural and arts programming?
Solution: Alpha Repertory Television Service (ARTS)