Question: when did it become legal to advertise prescription drugs on tv
[{'answer': '1953'}, {'answer': '2008', 'provenance': [{'wikipedia_id': '8037104', 'title': 'Direct-to-consumer advertising', 'start_paragraph_id': 11, 'start_character': 3, 'end_paragraph_id': 11, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Legality.:Brazil.\n'}]}, {'answer': '1985', 'provenance': [{'wikipedia_id': '8037104', 'title': 'Direct-to-consumer advertising', 'start_paragraph_id': 31, 'start_character': 552, 'end_paragraph_id': 31, 'end_character': 556, 'bleu_score': 1.0, 'section': 'Section::::Legality.:United States.:History.\n'}]}, {'answer': '1981', 'provenance': [{'wikipedia_id': '8037104', 'title': 'Direct-to-consumer advertising', 'start_paragraph_id': 21, 'start_character': 27, 'end_paragraph_id': 21, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Legality.:New Zealand.\n'}]}, {'provenance': [{'wikipedia_id': '8037104', 'title': 'Direct-to-consumer advertising', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 449, 'bleu_score': 0.691228147895635, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13804951276391505972}, 'section': 'Section::::Legality.:Brazil.\n'}]}]