When ABC needed a summer filler for "Grey’s Anatomy", the network took a shopping trip north of the border and found "Rookie Blue", a perfectly formulaic — and perfectly cheap — cop drama. The show is designed for a cross-border audience, and aside from the occasional shot of the CN Tower or a bright blue $5 bill, there’s little to tip off Americans that the show is imported.

The fourth season carried five million viewers in the U.S., about five times the number of Canadians who watched the drama. The U.S. audience is still a fraction of the nearly 19 million viewers "The Big Bang Theory" attracts, but in this era of shrinking audiences it’s enough to keep "Rookie Blue" on American airwaves. It’s the sort of tempered international success Canadian producers now strive for.

Welcome to the future of CanCon.

Canadian content rules have been in place for TV broadcasters since the 1960s, born out of the belief that Canadians needed to see their culture reflected back to them when they turned on their TV.

But Netflix, unauthorized downloading, video on demand, iTunes and other custom platforms have revolutionized how, when and where we watch TV. Technology has made the world of TV more global and audiences more fragmented, changing the game for viewers, producers and policy-makers.

More from HuffPost Canada's Digital Divide series:

As even the most buzzed-about shows like "Breaking Bad" draw a fraction of the ratings of hit shows in bygone eras, U.S. networks settle for Canadian shows like "Rookie Blue" because they produce mediocre ratings at a low cost, thanks to content that is heavily financed through Canadian licensees, incentives and subsidies. Meanwhile, Canadian networks prefer importing U.S. content to fill schedules because it is low-risk with a more attractive price tag than original productions.

It is the paradox of Canadian television: Producers struggle to de-Canadianize content to play to international audiences while trying to maintain enough distinction to appear “Canadian enough” to appease CRTC requirements.

The changing landscape has replaced innovative CanCon like "Trailer Park Boys" and legends like "SCTV" with safer fare like "Rookie Blue" or "Flashpoint" or derivative American content: Spin-offs of hit reality shows like "The Bachelor Canada", which have been ratings gold.

So are CanCon rules worth saving?

It is a question the Canadian Radio-television Telecommunications Commission is open to examining as part of a review of the future of Canadian TV this spring.

“Everything is on the table” in the upcoming review, CRTC chair Jean-Pierre Blais said in an interview with HuffPost Canada, adding that the current system is outdated.

The consumer-focused chairman has signalled in the past he’s willing to consider removing Canadian content obligations and foreign restrictions.

“We need to move from protect to promote” and “from conformity to experimentation” he said in a June speech. He has also warned that broadcasters “will have to compete just like any other sector.”

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  • "The Rick Mercer Report"

    Canadians got to know him on "This Hour Has 22 Minutes," but Mercer became a household name when he got his own show. His iconic rants have made him a sort of unofficial conscience for Canada, while his disarming and silly interviews have humanized some of Canada's most important people.

  • "SCTV: The Great White North"

    What started as a segment for "SCTV" quickly became a pop culture phenomenon. Bob and Doug McKenzie's "Great White North" inspired albums, movies and even a cartoon.

  • "Fraggle Rock"

    Created by Jim Henson and produced by Canadians in the early 1980s, "Fraggle Rock" was an international hit and shown in a dozen countries.

  • "Mr. Dressup"

    Airing on the CBC from 1967 to 1996 (and much longer in repeats), "Mr. Dressup" became an icon for generations of Canadian children.

  • "The Red Green Show"

    If you think duct tape can fix anything ... well, you have "The Red Green Show" to blame for that.

  • "The Beachcombers"

    Running from 1972 to 1990, "The Beachcombers" holds the distinction of being the longest-running dramatic series ever on English Canadian television.

  • "The Trouble With Tracy"

    Some people considered this CTV sitcom to be one of the worst ever created, but somehow it still managed to air 130 episodes.

  • "Danger Bay"

    Ever-conscious of our environment, this Canadian drama, which took place in B.C., dealt with issues like deforestation and saving the ocean from pollution.

  • "Being Erica"

    This charming CBC comedy-drama starred Erin Karpluk as Erica Strange, a young woman in Toronto who somehow gains the ability to travel back to earlier parts of her life to fix her mistakes.

  • "Trailer Park Boys"

    Airing for seven seasons and currently airing online (and back for another movie in 2014!), "Trailer Park Boys" chronicled the hilarious hijinks of the residents of a trailer park in small-town Nova Scotia.

  • "This Hour Has 22 Minutes"

    One of the pillars of Canadian comedy, "This Hour Has 22 Minutes" has consistently been one of the funniest half-hours on Canadian TV.

  • "The Littlest Hobo"

    A resourceful dog wanders across the country helping strangers along the way ... That's it. What more do you want?

  • "Degrassi Junior High" (And "Degrassi High," And "Degrassi"...)

    This groundbreaking teen drama brought up issues faced by teens years before any other show would touch them. The show would go on to inspire numerous spin-offs, and yep, it's still on today!

  • "Lost Girl"

    This Canadian sensation has a huge fan base, and is currently in its fourth season. It follows Bo, a bisexual succubus, as she tries to discover her past and true identity. Just don't question the magic.

  • "Slings and Arrows"

    This ambitious Canadian drama told the story of a fictional Shakespeare festival and gave many Canadian actors a chance to do some of their best work.

  • "Dragons' Den"

    This show for entrepreneurs showcases Canadian inventions, and their proposals to established businesspeople. Highly entertaining (especially when the inventions are terrible), the U.S. took the concept and started "Shark Tank."

  • "Anne Of Green Gables"

    A beloved Canadian children's book got a faithful and great adaptation by the CBC -- and Megan Follows garnered a cult status/following after her turn as the titular Anne.

  • "The Raccoons"

    Airing in the late 1980s, "The Raccoons" was a beloved children's show. Bert, Ralph and Melissa (the three raccoons) often faced off against the vicious Cyril Sneer and his pushover son, Cedric.

  • "Da Vinci's Inquest"

    This CBC crime drama told the story of a coroner working in Vancouver. The show's lead character was based on Larry Campbell, the city's actual coroner who would go on to be elected mayor in 2002.

  • "Wayne & Shuster Show"

    A Canadian comedy pioneer, the "Wayne & Shuster Show" would be a template for the country's many, many comedy shows.

  • "SCTV"

    John Candy, Rick Moranis, Andrea Martin, Catherine O'Hara ... the list goes on. The show was probably the single greatest collection of comedy talent ever assembled for Canadian TV.

  • "Hockey Night In Canada"

    For more than 60 years, the CBC beamed hockey into the nation's living rooms. Few shows deserve to be described as iconic, but "HNIC" is one of them.

  • "The Nature of Things"

    For more than five decades, "The Nature of Things" has been delivering some of the best scientific documentaries to Canadians. Suzuki teaches us about everything!

  • "Royal Canadian Air Farce"

    Another Canadian comedy institution, "Air Farce" have been active since the 1970s. From lambasting politicians to mocking the pop culture figures of the day, this show is the height of hilarity.

CanCon rules require Canadian TV broadcasters to ensure 60 per cent of their overall content is Canadian and to spend about 30 per cent of their revenue on domestic content.

Fearing shifting viewing habits will hurt their bottom lines, many broadcasters are calling on the federal broadcast regulator to loosen their commitments to produce Canadian content, or at least require new competitors like Netflix and Apple TV to cough up for CanCon too.

Meanwhile, the number of Canadians tuning into domestic programming is steadily declining.

Huffington Post Canada’s readers appear blase about consuming homemade content. In an informal survey of nearly 1,000 readers, 76 per cent said Netflix should not have to subscribe to Canadian content rules.

Spending on Canadian television has never been higher, but not by broadcasters’ choice — they make a majority of their revenue from non-Canadian content and devote the best time slots to it.

Many broadcasters resent the CanCon mandate. They lose money on Canadian programming because it doesn’t draw high enough audiences to cover licence fees and other costs.

And they argue that Netflix’s entry into the Canadian market provides little net benefit to the country. Netflix doesn’t pay any taxes or contribute to Canadian production funds under the current rules.

The U.S.-based online streaming giant was painted as a foreign threat during CRTC hearings into Bell’s acquisition of Astral, with the broadcasters arguing a merger would help create a Canadian competitor with the heft to compete against Netflix.

Though Rogers Communications and Shaw Media spoke out about their rival’s proposal, they line up with Bell in warning about the negative impact online TV providers like Netflix could have on the marketplace.

“There’s no question they’re living in a space here where it’s not an even playing field. We have obligations to the Canadian system that they don’t,” Shaw vice-president of original programming Christine Shipton said in an interview.

“We pay into production funds and we pay taxes and many of these 'over-the-top' providers aren’t paying taxes and they certainly aren’t paying into production funds,” said David Purdy, Rogers vice-president of content.

Purdy doesn’t want Netflix and other new entrants to have to pay into the system, instead he wants to be “free to compete more directly” through loosened CRTC rules.

Netflix has argued that it does support Canadian programming. It has bought the rights for many Canadian hits, including "Kids in the Hall", "Slings and Arrows" and "Being Erica". The CRTC estimates about five per cent of Netflix Canada’s content is Canadian and the company spends about $5 million a year on CanCon.

In addition, Netflix’s original show "Hemlock Grove" was shot in and around Toronto, meaning at least some of its reported $45 million budget was spent in Canada.

However, critics argue, those investments do little to support the production of new Canadian shows.

Any market share gains by Netflix at the cost of a Canadian competitor reduce CanCon funding, the CRTC has said. The regulator estimates that each loss of a TV subscriber to Netflix reduces Canadian content spending by $2.05 per subscriber per month.

The CRTC has largely been able to sidestep the Netflix issue so far, pointing to studies showing it has yet to lead to mass cable cutting. However industry players think the regulator will be obligated to address the issue in upcoming hearings over pick-and-pay cable.

“It’s going to radically reshape the policy structure in the country, it can’t help but do that. I think it’s an appropriate time to include the debate about the role of broadband television,” said Michael Hennessy, president of the Canadian Media Producers Association.

Still, he doesn’t believe broadcasters’ claims that deregulation of the industry is the answer. That, he said, would only exacerbate an already likely decline in the number of Canadian television shows produced.

Competition in the Netflix age will lead to a shaking out, Purdy said. Canadian broadcasters with iconic original content will succeed and those with middle-of-the-road content will struggle.

Broadcasters are scaling back on the number of shows they’re funding and hedging their bets with higher investments in the few shows that show the most promise.

It could mean the end of mediocre content, or it could mean more "Rookie Blues".

Scale is more important than ever for producers willing to be daring. Pumping money into a franchise to produce the equivalent of a "Game of Thrones" in a country one-tenth the size of the U.S. is only remotely profitable if producers can guarantee an audience outside the country.

That means an increasing number of co-productions — international collaborations like "The Borgias" — that could increase viewership around the globe, driving a lot of programming to be less identifiably Canadian and Canadian controlled.

But there is hope for a balance between Canadiana and global success in co-productions, such as the critically-acclaimed and internationally aired "Orphan Black", which has a mostly Canadian cast and doesn’t hide its Toronto setting.

Audiences are driving content more than ever, and the younger generation of viewers is less concerned with the origin of the show as long as it’s good, Hennessy said. The explosion of online platforms makes it easy for Canadians to discover the world’s best TV, which might just include Canadian shows.

“You like to see bits of Canada reflected but you’ve got to like the show,” he said. “Nobody wants to watch a show just because it’s Canadian.”