This is from the Edmonton Journal and it's about radio there. But it's still relevant to most markets, including those in Ontario. It laments the lengthening loss of the local and late-night radio shift in North America, replaced by endless automation, syndicated shows and hosts dropping in remotely from other parts of the country. 

"Late-night radio was also seen as the training ground for aspiring hosts. Talk to practically any veteran and they’ll tell you how they cut their teeth on the graveyard shift, which has been eliminated from local airwaves for at least 10 years."

You may not recognize the names in the story, unless you know the Edmonton market. But the loss of that shift is clear to anyone who ever turned on a mic when the sun went down. 

The final stand of Edmonton’s remaining late-night radio hosts