Complex sentence: Viva Main Event is its only program which still airs in IBC recently, as it became part of the TV5 sports programming block AKTV, making Viva Sports own a mere 20% of the block.
Split into simpler sentences: Viva Main Event is its only program which still airs in IBC until now. It is now part of its new programming block AKTV, making Viva Sports own a mere 20% of the block.