NGTV Guide: Monday, December 20

The Closer – TNT 9/8c
“Living Proof: Part 1” – The team’s holiday plans are potentially ruined when a long-standing feud results in a stabbing on Christmas Eve and the death of a patriarch. Especially irritated is Brenda, whose parents (Frances Sternhagen, Barry Corbin) have arrived for the holidays and come bearing special news. Mary McDonnell reprises her role as Capt. Raydor.