In 1982, This logo was designed by Chuck Jones.
There is actually two versions of this logo.
It starts out with a close-up of the "V" and it moves up and down like a zig-zag.
It spells out "Viacom" and an announcer is heard reading the name "Viacom" after the logo is fully formed.
In 1999, all the letters were jumbled together, then put in the right order.
A voice that can barely be heard says "Viacom".