How many feathers were on the tail of the original National Broadcasting Company (NBC) peacock?

The National Broadcasting Company (NBC) has used several corporate logos over the course of its history.

According to the New York Times, John J. Graham and Herb Lubalin designed a peacock for the NBC television network: an abstraction of an eleven-feathered peacock indicating richness in color. This brightly hued peacock, which NBC called the "Bird," was adopted because of the increase in color programming. In addition, NBC's owner, RCA, manufactured color television sets. As a result, the peacock became a marketing tool, in the hopes that people tuning into NBC would purchase color TV sets. NBC's first color broadcasts showed only a still frame of the colorful peacock. Several modifications were made by NBC before the emblem made its first on-air appearance on May 22, 1956.

In summer 1957, beginning with Your Hit Parade, the peacock became animated and introduced every NBC color show until a revamped animation appeared in 1962. Its musical backing was a gong while the peacock began its formation, with a male announcer saying "The following program is brought to you in living color on NBC," while the music crescendoed followed by a nine-note flourish while the peacock's feathers changed color and finally spread out.