Question: when did rocko's modern life first air
[{'answer': 'September 18 , 1993', 'provenance': [{'wikipedia_id': '339755', 'title': "Rocko's Modern Life", 'start_paragraph_id': 50, 'start_character': 287, 'end_paragraph_id': 50, 'end_character': 306, 'bleu_score': 1.0, 'section': 'Section::::Reception.:Ratings.\n'}]}, {'provenance': [{'wikipedia_id': '339755', 'title': "Rocko's Modern Life", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 521, 'bleu_score': 0.8260853921517121, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11911327269181626696}, 'section': 'Section::::Abstract.'}]}]