In what year did the European version of Nickelodeon debut in the Czech Republic?
Nickelodeon (Croatia):  The channel is served by the Pan-European feed. Nickelodeon (Central &amp; Eastern Europe):  Later, Nickelodeon debuted in the Czech Republic on February 10, 2010, in Croatia on November 18, 2011, in Ukraine on March 2012, in Slovenia and Serbia on April 28, 2013 and in Bulgaria on November 4, 2013.
2010