I was able to reproduce this and you can fix this by replacing the codes below in the file /components/com_easysocial/themes/wireframe/emails/event/video.create.php,
[gist]
<?php echo JText::sprintf('COM_EASYSOCIAL_EMAILS_EVENT_NEW_DISCUSSION_CONTENT' , '<a href="' . $userLink . '" style="color:#00aeef;text-decoration:underline;">' . $userName . '</a>' , '<a href="' . $eventLink . '" style="color:#00aeef;text-decoration:underline;">' . $eventName . '</a>');?>
[/gist]
[gist]
<?php echo JText::sprintf('COM_EASYSOCIAL_EMAILS_EVENT_NEW_VIDEO_CONTENT', '<a href="' . $userLink . '" style="color:#00aeef;text-decoration:underline;">' . $userName . '</a>' , '<a href="' . $eventLink . '" style="color:#00aeef;text-decoration:underline;">' . $eventName . '</a>');?>
[/gist]
Will fix this in the next release.