What is the airdate when the director is george spenton-foster
{'header': ['Episode', 'Title', 'Story', 'Adapted by', 'Director', 'Airdate', 'Exists?'], 'page_title': 'List of Out of the Unknown episodes', 'page_id': '', 'types': ['real', 'text', 'text', 'text', 'text', 'text', 'text'], 'id': '1-15739098-1', 'section_title': 'Series 1', 'caption': 'Series 1', 'rows': [['101', '“No Place Like Earth”', 'John Wyndham', 'Stanley Miller', 'Peter Potter', '4 October 1965', 'Yes'], ['102', '“ The Counterfeit Man ”', 'Alan Nourse', 'Philip Broadley', 'George Spenton-Foster', '11 October 1965', 'Yes'], ['103', '“Stranger in the Family”', 'David Campton', 'n/a', 'Alan Bridges', '18 October 1965', 'Yes'], ['104', '“ The Dead Past ”', 'Isaac Asimov', 'Jeremy Paul', 'John Gorrie', '25 October 1965', 'Yes'], ['105', '“ Time in Advance ”', 'William Tenn', 'Paul Erickson', 'Peter Sasdy', '1 November 1965', 'Yes'], ['106', '“Come Buttercup, Come Daisy, Come...?”', 'Mike Watts', 'n/a', 'Paddy Russell', '8 November 1965', 'Yes'], ['107', '“ Sucker Bait ”', 'Isaac Asimov', 'Meade Roberts', 'Naomi Capon', '15 November 1965', 'Yes'], ['108', '“The Fox and the Forest”', 'Ray Bradbury', 'Terry Nation', 'Robin Midgeley', '22 November 1965', 'No'], ['109', '“Andover and the Android”', 'Kate Wilhelm', 'Bruce Stewart', 'Alan Cooke', '29 November 1965', 'No'], ['110', '“Some Lapse of Time”', 'John Brunner', 'Leon Griffiths', 'Ray Jenkins', '6 December 1965', 'Yes'], ['111', '“Thirteen to Centaurus”', 'J. G. Ballard', 'Stanley Miller', 'Peter Potter', '13 December 1965', 'Yes']], 'name': 'table_15739098_1'}