Many Canadian ISPs, including Bell, Rogers and Videotron, also function as cable providers and in some cases, broadcasters. Bell Canada, joined later by Rogers, started pushing Canada's regulator, the CRTC, to create a blacklist of sites that let people download pirated TV shows and movies. All ISPs would then be required to block such sites.

The CRTC rejected that idea, so the ISPs filed a lawsuit. Despite arguments to the contrary, the judge ruled that the decision wouldn't jeopardize net neutrality or freedom of expression. ISPs have thus been ordered to block access to GoldTV within 15 days.

Ontario-based TechSavvy was one of the few ISPs to oppose the measure, saying it wouldn't be effective or appropriate. The company noted that subscribers could easily go around the block with VPN tech and that it could lead to a slippery slope that would put an undue enforcement burden on ISPs.

"If the plaintiffs were successful in obtaining a site-blocking order in this case, there is no question that they would use it as a precedent to obtain other site-blocking orders, whether in respect of copyright infringement or otherwise," it said. "TekSavvy could be faced with hundreds and even thousands of websites to block and monitor, exponentially increasing the costs of operating and maintaining a site-blocking system and overwhelming TekSavvy's capacity."

About 70,000 Canadians submitted comments and signed a petition against ISP overreach, aided by the Vancouver-based Open Media organization. "It's a slippery slope," representative Marie Aspiazu told the CBC earlier. "Once you have the government having control of what we can see or not see, it becomes problematic."