Live event organiser Roaming Robots has announced that from their next event at the Mountbatten Centre in Portsmouth on the 16th and 17th of March 2013, they will be officially known as "Robot Wars" following a licensing agreement with Robot Wars LLC, the US company that controls the Robot Wars brand.
More on the announcement can be found here: http://www.fightingrobots.co.uk/forum/viewtopic.php?f=3&t=5702