Question: when did 8 out of 10 cats does countdown start
[{'answer': '2 January 2012', 'provenance': [{'wikipedia_id': '42917916', 'title': '8 Out of 10 Cats Does Countdown', 'start_paragraph_id': 3, 'start_character': 98, 'end_paragraph_id': 3, 'end_character': 112, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]