Sometimes less is more. This is the case with the logo you’ll see on any Mercedes-Benz car. It’s only a circle with a triangle inside, but you can’t miss any of them when a car drives by you.

If their logos are any indication, TV nets are looking to become a little more well-rounded. A number of broadcast and cable webs have gone circle-centric, redesigning their logos to incorporate ...

As Toyo Kyogo—the company now known as Mazda—celebrates 100 years, we look back on how its logos have developed over the last century.