If you watched the Toronto Maple Leafs play the Florida Panthers in Game 1 of their playoff series last Tuesday, you probably took in almost eight and a half minutes of sports gambling advertising. That includes several 30-second television ads as well as on-screen sponsorship deals.

In Ontario, the prevalence of that kind of advertising has increased significantly since the province opened up to independent online gambling sites last year.

But the move has some asking if there are too many ads and what impact they have on viewers.

Among them is Karl Subban, a hockey coach and the father of three NHL players.