ITV will become horse racing 's main broadcaster on 1 January next year when Channel 4 's exclusive contract concludes on 31 December 2016 .
Channel 4 's exclusive contract has run since the beginning 2012 .
ITV will become horse racing 's main broadcaster on 1 January next year when Channel 4 's exclusive contract , which has run since the beginning 2012 , concludes on 31 December 2016 .