Monster high is not on tv but there is monster high specials (new ghoul at school and fright on) on nick but only broadcasts in the U.S.A . However monster high only shows webisodes on monster high.com and YouTube.
There are two Halloween specials for Monster High for TV. One that aired in 2010 is called 'Monster High: New Ghoul @ School'. The second one will be aired on Nickelodeon on October 30, 2011 and is called 'Monster High: Fright On'.