Warner Bros. Discovery opened its annual upfronts presentation to advertisers Wednesday with a tribute to the late, great Ted Turner led by CNN’s Anderson Cooper . Following a sizzle promoting every modern WBD property from James Gunn’s new “Superman” movie to HBO ‘s upcoming “Harry Potter” TV series, WBD’s presidents of U.S. advertising Ryan Gould and Bobby Voltaggio took the stage to welcome the audience and promise to try to keep this presentation to an hour-long runtime. Then they brought up the “Ellison in the room,” in reference to Paramount Skydance’s pending acquisition of Warner Bros. Discovery: Popular on Variety “Listen, we don’t deflect,” Gould said. “That’s not who we are. Everyone here knows that there’s change ahead and that there’s change in our company, but there’s change across the entire media industry, and we’re well aware that your business is changing, but we believe that success is a team effort.…