Jennifer Maas TV Business Writer Warner Bros. Discovery kept up with TV upfronts week’s biggest trend at their presentation out of The Theater at Madison Square Garden Tuesday: Promoting not just its TV slate as a prime ad-buying opportunity — but also its film franchises. First up from CEO David Zaslav’s team, WB Discovery revenue and strategy chief Bruce Campbell addressed the Madison Avenue crowd following a sizzle featuring top WBD IP and brands across film and TV series.