Question: when was hd tv introduced in the uk
[{'answer': '2006', 'provenance': [{'wikipedia_id': '13339604', 'title': 'High-definition television in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 163, 'end_paragraph_id': 1, 'end_character': 167, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13339604', 'title': 'High-definition television in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 294, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5794467103151871738}, 'section': 'Section::::Abstract.'}]}]