The Top 40 became a dominant radio format in the 1960s, 1970s, and 1980s.

Top 40 was the dominant radio format of the 1960s, 1970s, and 1980s.

Two years later, as radio formats narrowed, he was out of a job.

It was also the third most played song of 2006 on Christian radio formats.

The term "Top 40" for a radio format appeared in 1951.

In the early 2000s, the station carried a Catholic radio format.

It is one of the few times throughout the year that station breaks away from their all news radio format.

The radio format of the station is student information, entertainment, technology transfer, news and music.

Was only released to rock radio formats, not as a physical or mainstream single.

It very rarely is referred to as a specific radio format.