<P> The fifth and final season of The New Adventures of Old Christine premiered on September 23 , 2009 and concluded on May 12 , 2010 . It consisted of 21 episodes . </P>
<P> The fifth and final season of The New Adventures of Old Christine premiered on September 23 , 2009 and concluded on May 12 , 2010 . It consisted of 21 episodes . </P>
when did the new adventures of old christine end
when did the new adventures of old christine end
May 12 , 2010
May 12 , 2010