It has already aired
September 9, 2010
September 23rd2010
12th december
the next episode of season 3 will air january 5,2012
September 9, 2010
Jan 2012 i think
Season 3 will probably air in October
I don't know there is only repeats of Benidorm instead of vampire diaries 
Vampire Diaries doesn't air again in December 2010. The season will continue on January 27, 2011.
September 16th, 2012 Kurt Devin
January 21, 2010