Key TakeawaysWarner Bros. Discovery shares fell in premarket trading Thursday following the release of first-quarter results that fell short of analyst estimates.Revenue fell more than expected, while WBD also posted a larger net loss than analysts had estimated.Ongoing negotiations with the NBA over the league's next broadcasting deal, along with a streaming bundle partnership with Disney the companies announced Wednesday, could substantially impact WBD's future earnings. Warner Bros. Discovery (WBD) share ...