Like the studio itself, the iconic Warner Bros. shield logo has evolved over the years ... he threw himself into readying the company’s Vitaphone synchronized sound system to impress moviegoers ...

In 1929, to show that their movies had sound, Warner Bros. shared its logo with Vitaphone, and in 1934, a shield logo floating in a cloud-filled sky with the WB taking up the entire shield debuted.

Never shown even on TCM, they’re the fruit of a collaboration between Warner Bros., the UCLA Film and Television Archive and the Vitaphone project that yielded an earlier collection.