Patrick Duffy, Linda Grey and Larry Hagman attend a party to celebrate 

Patrick Duffy, Linda Grey and Larry Hagman attend a party to celebrate the new Channel 5 television series of 'Dallas', at Old Billingsgate, London, on August 21, 2012 -- Getty Images
Access Hollywood
Patrick Duffy, Linda Grey and Larry Hagman attend a party to celebrate the new Channel 5 television series of 'Dallas', at Old Billingsgate, London, on August 21, 2012 -- Getty Images
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