The first season of Survival Audition K-pop Star (Korean: 서바이벌 오디션 K팝 스타 ) premiered on December 4, 2011, airing every Sunday evening at 6:30 pm under the "Good Sunday" programming block on SBS, until April 29, 2012. The first winner was Park Ji-min, who chose to sign with JYP Entertainment.
The "Good Sunday" programming block ended on April 29, 2012.
The snippet only states the first season ended on April 29, 2012, not the Good Sunday programming block. I think the AI gets confused when small sentences like that are tacked on and relate to a previous noun and not the current one in the sentence.