Charlton Media Group (CMG) is a Montreal-based publisher owned and operated by Canadian entrepreneur Roger Broughton. CMG has published Charlton Comics and American Comics Group reprint comics, under several names, including Sword in Stone, A+, and America's Comics Group. Long-time comics publisher Charlton Comics went out of business in 1985. Most of Charlton's superhero characters had been acquired in 1983 by DC Comics, and Broughton's company Sword in Stone Productions purchased the reprint rights to the remaining Charlton Comics properties in 1986. The sale announcement in Comics Buyer's Guide caused an avalanche of phone calls that lasted for well over a month.