Question: when does star trek discovery air on tv
[{'answer': 'September 19 , 2017', 'provenance': [{'wikipedia_id': '48442701', 'title': 'Star Trek: Discovery', 'start_paragraph_id': 3, 'start_character': 36, 'end_paragraph_id': 3, 'end_character': 55, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48442701', 'title': 'Star Trek: Discovery', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 409, 'bleu_score': 0.891788949662028, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18305474470530431425}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48442701', 'title': 'Star Trek: Discovery', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18305474470530431425}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48442701', 'title': 'Star Trek: Discovery', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['"Star Trek: Discovery" premiered on September 19, 2017, at ArcLight Hollywood, before debuting on CBS and CBS All Access on September 24.', 'Star Trek: Discovery" premiered on September 19, 2017, at ArcLight Hollywood, before debuting on CBS and CBS All Access on September 24.', 'Star Trek: Discovery" premiered on September 19, 2017, at ArcLight Hollywood,']}}]}, {'provenance': [{'wikipedia_id': '55358735', 'title': 'Star Trek: Discovery (season 1)', 'section': 'Section::::Release.\n', 'start_paragraph_id': 65, 'end_paragraph_id': 65, 'meta': {'evidence_span': ['"Star Trek: Discovery" premiered at the ArcLight Hollywood on September 19, 2017', '"Star Trek: Discovery" premiered at the ArcLight Hollywood on September 19, 2017.', '"Star Trek: Discovery" premiered at the ArcLight Hollywood on September 19, 2017.']}}]}, {'provenance': [{'wikipedia_id': '17157886', 'title': 'Star Trek', 'section': 'Section::::Television.:"Discovery" (2017–present).\n', 'start_paragraph_id': 58, 'end_paragraph_id': 58, 'meta': {'evidence_span': ["It premiered September 24, 2017 in the United States and Canada on CBS before moving to CBS All Access, while Netflix streams the show outside the United States and also provides most of the show's funding", "It premiered September 24, 2017 in the United States and Canada on CBS before moving to CBS All Access, while Netflix streams the show outside the United States and also provides most of the show's funding.", '. It premiered September 24, 2017 in the United States and Canada on CBS before moving to CBS All Access,']}}]}]