Key TakeawaysWarner Bros. Discovery posted better-than-expected earnings as its Max streaming service set a record for new subscribers.The movie, TV, and streaming entertainment provider added 7.2 million subscribers in the third quarter. Shares surged Thursday following the release, though even with Thursday's gains, they remained lower for the year. Warner Bros. Discovery (WBD) shares surged Thursday after the media giant posted better-than-expected earnings as its Max streaming service set a record for ...