Question: when did the first episode of charlie brown come out
[{'answer': 'October 2 , 1950', 'provenance': [{'wikipedia_id': '140471', 'title': 'Charlie Brown', 'start_paragraph_id': 7, 'start_character': 283, 'end_paragraph_id': 7, 'end_character': 299, 'bleu_score': 1.0, 'section': 'Section::::History.:1940s–1950s.\n'}]}, {'provenance': [{'wikipedia_id': '140471', 'title': 'Charlie Brown', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 1011, 'bleu_score': 0.9894455409323081, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9458038738786852704}, 'section': 'Section::::History.:1940s–1950s.\n'}]}]