With 5.9 million downloads via BitTorrent, the 2013 season finale has beat the competition by a landslide.

More than half of the downloads occurred in the first week after the show aired and the total exceeds the number of traditional viewers in the US. Breaking Bad and The Walking Dead complete the top three with and estimated 4.2 and 3.6 million downloads respectively.

Game of Thrones’ win comes as no surprise since the show has broken two piracy records already this year, with over 170,000 people sharing a copy of an episode simultaneously.

There are a wide variety of reasons why people download TV-shows, but to a certain degree one could claim that HBO is to blame for the massive piracy of Game of Thrones. The network prefers to keep access to the show “exclusive” and even Netflix wasn’t able to buy the rights no matter what they offered.

Interestingly enough, we also learned this year that the huge number of unauthorized downloads don’t bother the show’s makers all that much, quite the contrary. Game of Thrones director David Petrarca previously admitted that piracy generated much-needed “cultural buzz” around his show.

Jeff Bewkes, CEO of HBO’s parent company Time Warner, went even further, stating that piracy resulted in more subscriptions for his company and that receiving the title of “most-pirated” was “better than an Emmy.”

On the other end of the spectrum we have Gale Anne Hurd, executive producer of The Walking Dead, who told Variety last week that unauthorized downloads are not necessarily the blessing others claim they are.

“There’s a mistaken belief by many of my peers that piracy is somehow good, that viewers will develop a habit to pay for it. I’m not sure they really understand other than anecdotal evidence that their ratings go up that the people who pirate are not then going to choose legal downloads or legal viewing in the future,” Hurd said.

Hurd has a point, as it’s not always that easy for existing pirates to give up their habit, not even if the legal options are widely available and free. For example, The Walking Dead premiere this year was downloaded en masse in the US, despite the fact that AMC streamed the show for free.

This debate about whether TV-show piracy is a good or bad thing will most likely continue throughout the coming year, and beyond.

Below we have compiled a list of the most downloaded TV-shows worldwide ( per single episode) for 2013, together with the viewer average for TV in the US. The data are estimated by TorrentFreak based on several sources, including download statistics reported by public BitTorrent trackers.

It is worth nothing that online streaming and cyberlocker downloads are not included since there are no public sources to draw data from. The total piracy numbers will therefore be significantly higher.

Source: TorrentFreak, for the latest info on copyright, file-sharing and anonymous VPN services.

The achievement comes as no surprise since the show has broken two piracy records in a few weeks, and the high number of unauthorized downloads has been widely covered in the press.

Even before the third season started there was already a lot of talk about Game of Thrones piracy. Interestingly, many of the people connected to the show saw it as a compliment rather than a major threat that needs to be dealt with.

The most outspoken position was taken by David Petrarca, the show’s director, who noted that unauthorized downloads actually do more good than harm. According to the director, pirates are partly responsible for the “cultural buzz” the show needs to thrive and survive.

After the season got underway some critical notes also appeared. The Ambassador of the United States of America to Australia recently complained about the “plain theft” being carried out by Australians.

This was countered by many self-confessed pirates including Timo Vuorensola, director of the Disney movie Iron Sky. The Finnish director told HBO that their legal service “sucks” and promised to download the show from The Pirate Bay instead.

The end result is that the most shared episode of Game of Thrones, the season opening, was downloaded by 5.2 million people all over the world. This dazzling statistic represents a 25 percent increase compared to last year and three times the amount achieved by several of the TV shows further down the top 10.

The increase in viewers wasn’t limited to the pirated channels though. HBO also saw ratings for Game of Thrones increase by roughly a quarter, driving many new customers to their paid subscriptions.

Whether the number of legal viewers would be higher or lower without piracy is hard to measure, but it could go both ways.

Looking at the full list we see that it contains many household names that have done well over the years, such as The Big Bang Theory and How I Met Your Mother, which are listed in second and third place respectively.

There are also some notable newcomers. In fact, three shows in the list of most pirated shows just completed their first season – Hannibal, Vikings and Arrow. All three achieved between one and two million downloads per episode.

Below we have compiled a list of the most downloaded TV-shows worldwide (estimates per single episode) for the spring season from March up until June 2013, together with the viewer average for TV in the US. The data is collected by TorrentFreak from several sources, including download statistics reported by public BitTorrent trackers.

It is worth nothing that online streaming and cyberlocker downloads are not included since these can’t be measured accurately. The full piracy numbers will therefore be significantly higher.

Source: TorrentFreak, for the latest info on copyright, file-sharing and anonymous VPN services.

While there are many reasons for people to download TV-shows through BitTorrent, airing delays and HBO’s choice not to make it widely available online are two of the top reasons.

Game of Thrones is particularly popular in Australia, where people have to wait a week after the U.S. release comes out. Nevertheless, even in the U.S. hundreds and thousands are downloading the show for free, although many would love to pay for it if HBO offered a standalone HBO GO subscription.

It’s clear that HBO (and others) prefer exclusiveness over piracy, which is a dangerous game. They might make decent money in the long run by selling subscriptions. However, this limited availability also breeds pirates, and one has to wonder how easy it is to convert these people to subscriptions once they have experienced BitTorrent.

For now, Game of Thrones appears to be the top contender to throw Dexter off the throne by the end of the year, to become the most pirated TV-show of 2012.

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Below we have compiled a list of the most downloaded TV-shows worldwide (estimates per single episode) for the spring season up until June 1st 2012, together with the viewer average for TV in the US. The data for the top 10 is collected by TorrentFreak from several sources, including reports from all public BitTorrent trackers.

Source: TorrentFreak, for the latest info on copyright, file-sharing and anonymous VPN services.

The fifth season of Lost just started with two new episodes. Both episodes were downloaded close to two million time in the first week. As always, the vast majority of the people who download the show are located outside the U.S, where it may take up to a year before season 5 will actually air on TV.

The rise of unauthorized downloading of TV-shows is a signal that customers want something that is not available through other channels. It’s more about availability than the fact that it’s free and should be viewed as an opportunity, not a threat. The more restrictions, the more piracy – it’s as simple as that.

The data for the most recent TV episodes are collected by TorrentFreak from a representative sample of BitTorrent sites and is for informational and educational reference only. Thanks to ShowInsider we now also include a list based on the total number of downloads (not only recent episodes) of all shows in the past week.

Source: TorrentFreak, for the latest info on copyright, file-sharing and anonymous VPN services.