Their format of the show has evolved considerably since the original series.

By the 1990s the station's format had evolved from Top 40 to oldies.

It's the first time we've done this, and no doubt the format will evolve - if indeed, I ever do it again.

The content and format of the charts has evolved over time.

The show's format has evolved into a legal examination by prosecutors, defense lawyers and police officers of whatever crime is in the news.

That format evolved through the 1980s as the station slowly tightened its focus.

In 1982 though the format evolved to include more crossover material.

Over the next few years, the station's format gradually evolved back to Top 40.

The format has since evolved from classic country to contemporary country.

The format evolved into an adult contemporary sound in the fall of 1977.