DirecTV said Tuesday that it’s open to giving subscribers exclusive online access to television shows such as HBO’s “Entourage” that are normally not available for free over the Internet, agreeing with a growing consortium of cable companies and networks. Web content should be an extension of a customer’s satellite TV viewing experience, not a competing platform, Chief Executive Chase Carey said at the Deutsche Bank Securities Media and Telecommunications Conference. The rising popularity of online video should be embraced instead of rejected, he said.