Question: what are all the office christmas episodes?
Answer: “A Benihana Christmas” (Season 3, 2006)
“Christmas Party” (Season 2, 2005) ... 
“Moroccan Christmas” (Season 5, 2008) ... 
“Classy Christmas” (Season 7, 2010) ... 
“Dwight Christmas” (Season 9, 2012) ... 
“Secret Santa” (Season 6, 2009) ... 
“Christmas Wishes” (Season 8, 2011) ...