Which Brand Should Not Have Changed Its Logo?

In one of my brand management classes during MBA, I learned this concept called Brand Associations. To explain the concept, my professor shared an example of Disney. Today, I'm going to use the same concept to share about a brand which lost its relevance due to meddling with one of its associations i.e. its logo. The brand is none other than our beloved Cartoon Network.

Brand Changed Logo

The Cartoon Network Logo

A Peek into the Logo's History