Question: when did television come out in the us
[{'answer': '1928', 'provenance': [{'wikipedia_id': '3636075', 'title': 'History of television', 'start_paragraph_id': 9, 'start_character': 90, 'end_paragraph_id': 9, 'end_character': 94, 'bleu_score': 1.0, 'section': 'Section::::Mechanical television.\n'}]}, {'answer': 'July 2 , 1928', 'provenance': [{'wikipedia_id': '3636075', 'title': 'History of television', 'start_paragraph_id': 113, 'start_character': 79, 'end_paragraph_id': 113, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Terrestrial television.:United States.\n'}]}, {'provenance': [{'wikipedia_id': '3636075', 'title': 'History of television', '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': 11381387237364571077}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3636075', 'title': 'History of television', 'start_paragraph_id': 113, 'start_character': 0, 'end_paragraph_id': 113, 'end_character': 470, 'bleu_score': 0.8869794465538711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11381387237364571077}, 'section': 'Section::::Terrestrial television.:United States.\n'}]}, {'provenance': [{'wikipedia_id': '3636075', 'title': 'History of television', 'section': 'Section::::Terrestrial television.:United States.\n', 'start_paragraph_id': 113, 'end_paragraph_id': 113, 'meta': {'evidence_span': ['The first regularly scheduled television service in the United States began on July 2, 1928, fifteen months before the United Kingdom.', 'The first regularly scheduled television service in the United States began on July 2, 1928, fifteen months before the United Kingdom.', 'The first regularly scheduled television service in the United States began on July 2, 1928, fifteen months before the United Kingdom.']}}]}]