In this articleWBDPARACMCSADavid Zaslav at the Allen & Company Sun Valley Conference on July 9, 2024 in Sun Valley, Idaho.David Grogan | CNBCComcast Chief Executive Officer Brian Roberts had a not-so-subtle message this week for Warner Bros. Discovery CEO David Zaslav: If you're selling, I'm not buying."Instead of engaging in a process to buy content companies, we have focused primarily on organic opportunities like the NBA," Roberts said Tuesday during Comcast's second-quarter earnings conference call.If y ...