Question: When was the American actor and producer born who was lead actor in the television series "MacGyver" (1985–1992) and also present in Season four of "Stargate SG-1"?
{'answer': 'January 23, 1950', 'supporting_facts': [['Stargate SG-1 (season 4)', 0], ['Stargate SG-1 (season 4)', 3], ['Richard Dean Anderson', 0]]}