Since the series in the US was halted mid term like all the rest due to the strike, it will probably not happen until the full series is available.
It starts in the UK in January 2011x
Season 2 will start on the:TUESDAY 11TH OF JANUARY 2011
From a few websites I've seen, there are suggestions of season 2 starting early 2013 in the uk
march 2009
2011
not soon enough
It will be shown on UK TV ON channel FX in February
October 5, 2010
5/10/2010
October 5, 2010
How I Met Your Mother's season 2 started in the US on September 18, 2006 and ended on May 14, 2007. In the UK it aired on October 2, 2009. There were 22 episodes in the season
Feb 09 - BBC 1