In the history of broadcast network logos, NBC's Peacock is relatively young. CBS introduced its "Eye" icon in 1951, while the ABC meatball has been more or less the same (with some slight font alterations) since 1962.

A logo is a big part of any major company's brand identity. It takes a lot of work to create a simple little image that the average consumer can immediately associate with certain features and qualities in products. Recognizability isn't the only common ...