By Deborah Mary Sophia (Reuters) -Warner Bros Discovery posted a bigger-than-expected quarterly loss on Thursday, as lackluster growth in its streaming unit and ongoing declines in its cable TV business more than offset a strong showing from the media giant's studio. Shares fell nearly 1% premarket. They have more than doubled in value this year as the company weighs a full or partial sale, while advancing plans to split its studio and streaming operations from its shrinking cable-TV unit. After a solid quarter last year fueled by the 2024 Paris Olympics and the first season of crime drama series "The Penguin", WBD's streaming business – home to HBO Max – faced a lull in fresh content in the July-September period. It added 2.3 million streaming subscribers in the third quarter, missing Vis

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