In March 2005, Viacom contemplated splitting the company into two publicly traded companies, amid issues of the stock price stagnating and clashing corporate cultures between the cable and broadcast divisions, which came to a head with the Super Bowl XXXVIII halftime show controversy a year previous with the MTV-produced show causing controversy for game broadcaster CBS.CBS said: "In many ways, today's decision is a natural extension of the path we laid out in creating Viacom," Redstone said in a company-wide memo."We are retaining the significant advantages we captured in the Paramount and CBS mergers and, at the same time, recognizing the need to adapt to a changing competitive environment.On August 13, 2019, CBS and Viacom officially announced their merger; the combined company was to be named ViacomCBS, with Shari Redstone serving as chair.[11][12][13] Upon the merger agreement, Viacom and CBS jointly announced that the transaction is expected to close by the end of 2019, pending regulatory and shareholder approvals.