There is a national TV network in Canada named CTV. Back in the 1960’s CTV introduced a new logo that incorporated a circle, a square and a triangle to represent the “C”, “T” and “V” respectively. This logo has survived for 50 years and it is still going strong, even though the ownership has changed over the years. I believe that the use of simple geometric shapes is part of the reason for the ongoing success and recognition of the logo.
The following are three sample images that utilize strong geometric shapes and patterns.