Question: when did they stop cigarette advertising on television
[{'answer': '1970'}, {'answer': 'January 2 , 1971'}, {'provenance': [{'wikipedia_id': '2199688', 'title': 'Nicotine marketing', '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': 17144483276877991511}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13119111', 'title': 'Johnny Roventini', 'section': 'Section::::Later years.\n', 'start_paragraph_id': 23, 'end_paragraph_id': 23, 'meta': {'evidence_span': ['In April 1970, Congress passed the Public Health Cigarette Smoking Act banning the advertising of cigarettes on television and radio starting on January 2, 1971', 'In April 1970, Congress passed the Public Health Cigarette Smoking Act banning the advertising of cigarettes on television and radio starting on January 2, 1971.']}}]}, {'provenance': [{'wikipedia_id': '1499164', 'title': 'Public Health Cigarette Smoking Act', 'section': 'Section::::Origins.\n', 'start_paragraph_id': 5, 'end_paragraph_id': 5, 'meta': {'evidence_span': ['The Public Health Cigarette Smoking Act was introduced into Congress in 1969, but it was not until April 1, 1970 when U.S. President Richard Nixon signed it into law.', "The Public Health Cigarette Smoking Act was introduced into Congress in 1969, but it was not until April 1, 1970 when U.S. President Richard Nixon signed it into law. The actual cigarette advertising ban did not come into force until January 2, 1971, as per a compromise that allowed broadcasters to air these commercials during their telecasts of college football bowl games on New Year's Day."]}}]}, {'provenance': [{'wikipedia_id': '1499164', 'title': 'Public Health Cigarette Smoking Act', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The Public Health Cigarette Smoking Act is a 1970 federal law in the United States designed to limit the practice of smoking. As approved by the United States Congress, the act required a stronger health warning on cigarette packages, saying ""Warning: The Surgeon General Has Determined that Cigarette Smoking Is Dangerous to Your Health"". It also banned cigarette advertisements on American radio and television.', 'The Public Health Cigarette Smoking Act is a 1970 federal law in the United States designed to limit the practice of smoking. As approved by the United States Congress, the act required a stronger health warning on cigarette packages, saying ""Warning:', 'The Public Health Cigarette Smoking Act is a 1970 federal law in the United States designed to limit the practice of smoking.']}}]}]