every episode from the seasons. Ultimately twelve episodes—approximately half the total number aired—were selected by Carter to represent each season, including nearly all "mythology arc" episodes and selected standalone episodes. Carter briefly introduced each episode with an explanation of why the episode was chosen and anecdotes from the set. These clips were later included on the full season DVDs. Wave eight, covering the last part of the fourth season, was the last to be released. No Carter interviews appeared on DVDs for later seasons. Many of the waves had collectible cards for each episode. All nine seasons were released on DVD along with the two films. The entire series was re-released on DVD in early 2006, in a "slimmer" package. The first five slim case versions did not come with some bonus materials that were featured in the original fold-out versions. However, seasons six, seven, eight and nine all contained the bonus materials found in the original versions. Episodic DVDs have also been released in Region 2, such as "Deadalive", "Existence", "Nothing Important Happened Today", "Providence" and "The Truth". Various other episodes were released on DVD and VHS. In 2005, four DVD sets were released containing the main story arc episodes of The X-Files. The four being Volume 1 Abduction, Volume 2 Black Oil, Volume 3 Colonization and Volume 4 Super Soldiers. A boxed set containing all nine seasons and the first film was made available in 2007, which contains all of the special features from the initial releases. The set also includes an additional disc of new bonus features and various collectibles, including a poster for the first film, a comic book, a set of collector cards and a guide to all 202 episodes across all nine seasons and the first film. Due to the fact that the set was released in 2007, the second film, which was released in 2008, is not included. Release of The X-Files seasons on Blu-ray, restored in high-definition, was rumored to begin in late 2013. The German TV channel ProSieben Maxx began airing first-season episodes reformatted in widescreen and in high-definition on January 20, 2014. On April 23, 2015, Netflix began streaming episodes of The X-Files in high definition, marking the first time that the series has been made available in the high resolution format in North America. In October 2015, it was confirmed that the complete series would be reissued on Blu-ray,