Nothing that I know of, and I've been a member of the Church for 23 years. Mormons celebrate the birth of Jesus Christ on Christmas, which is December 25th. Joseph Smith's birthday is December 23rd, but it is not celebrated. This year (2010) the Mormon Tabernacle Choir Christmas Concert is held on December 19th, but there is no significance to the date. The Choir holds a Christmas concert every year in December.
Hope and Faith - 2003 Faith's Therapy 3-8 was released on: USA: 11 November 2005 France: 19 December 2006
Special Report with Brit Hume - 1996 2013-12-19 was released on: USA: 19 December 2013
Special Report with Brit Hume - 1996 2012-12-19 was released on: USA: 19 December 2012
Katie - 2012 Keeping the Faith 2-72 was released on: USA: 19 December 2013
So Social - 2011 The So Social Holiday Special 2-19 was released on: USA: 19 December 2011
ADHDtv With Lew Marklin - 2007 An LMS X-Mas Special 1-19 was released on: USA: 19 December 2007
The "Mormon cow incident" or the Glattan Massacre happened in August 19, 1854.
JoJo's Circus - 2003 A Circus Town Christmas Special 1-19 was released on: USA: 7 December 2003
Hope and Faith - 2003 Faith's Maid 1-19 was released on: USA: 19 March 2004 France: 24 October 2006
Hope and Faith - 2003 Faith's Maid 1-19 is rated/received certificates of: Argentina:Atp
The Reel Show with Kristina Michelle - 2011 ICE Agent Special 3-19 was released on: USA: 3 December 2013
December 19 1999 was a Sunday.