Nick Vivarelli International Correspondent Saudi-owned MBC Group, the Middle East’s top broadcaster, has announced it is floating a 10% stake on the Riyadh stock exchange seeking to raise up to 831 million riyals ($222 million) in a move to boost growth and help fuel its output of high-end productions. “Institutional and retail investors will be allowed the opportunity to acquire shares and participate in the long-term growth plans of the company and the Saudi media market,” MBC Group said in a statement on Thursday.