Question: who was the first host of antiques roadshow
[{'answer': 'Chris Jussel', 'provenance': [{'wikipedia_id': '30626103', 'title': 'Antiques Roadshow (American TV program)', 'start_paragraph_id': 4, 'start_character': 57, 'end_paragraph_id': 4, 'end_character': 69, 'bleu_score': 1.0, 'section': 'Section::::Format.\n'}]}]