Loaded question! Is any medium trustworthy 100%?
On the whole, I would say yes. There are some "controlled by back pocket" sectors, but what else is new?
I would say that they are more trustworthy than their US counter-parts. But, do you believe everything you read or see via this "mass media"? Many stories, that turn out to be incorrect, were not published to purposely deceive, or mislead, but more to be the "1st out of the gate" with what looks to be great news. Research is lacking many times, and this is how so many rumours start that the companies, or governments, involved can't even figure how the story evolved about them!
If you judged life in the U.S. by watching COPS and AMERICA'S MOST WANTED, you wouldn't want to step across the border, for fear of your life. Same with the newspapers and TV "news" programs. "Good" news is really "bad" news. Violent death attracts readers/viewers, disasters attracts readers/viewers - and making it all look worse than it really is keeps them glued to that particular medium for more.
Do you watch news to see the local business have a ribbon-cutting by the mayor? Or a new small business starting and hiring 6 full-time people?
When we had our advertising business, in Orillia, we won 3 top nationally recognized awards for excellence in our field of business (in fact we won awards annually for 4 years in a row). We had to pay the newpaper to publish it, each year, and state that it was an ad.
I laugh at coverage of political speeches and anti-anything groups. I've been at afew and the press quite often herds the few people that attend into a small area so that it looks like a big attendance - or take key-angle shots to make 20 people look like 200 or more. Is that "trustworthy", or just a bit "misleading" and twising/manipulation of the truth?