Question: when did the first episode of ghost adventures air
[{'answer': 'October 17 , 2008', 'provenance': [{'wikipedia_id': '20565953', 'title': 'Ghost Adventures', 'start_paragraph_id': 1, 'start_character': 89, 'end_paragraph_id': 1, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20565953', 'title': 'Ghost Adventures', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 433, 'bleu_score': 0.9192507668025021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6653099176228498201}, 'section': 'Section::::Abstract.'}]}]