Media logos were originally physical sculptures

This behind-the-scenes look at the giant practical set built for HBO's 1983 station identification sequence is impressive. It inspired Christopher Johnson at Colossal to dig into the archives for more great examples, including a vintage logo created 63 years ago for Eurovision:

Quoth Christopher:

Recently, television history buff Andrew Wiseman unearthed this amazing behind-the-scenes shot of the Office de Radiodiffusion Télévision Française logo from the early 1960s that was constructed with an array of strings to provide the identity with a bright shimmer that couldn’t be accomplished with 2D drawings. The logo could also presumably be filmed from different perspectives, though there’s no evidence that was actually done.

HBO Intro - Behind the Scenes (YouTube / archivefilms) h/t Colossal