After the History Channel stopped doing real history documentaries and started focussing pseudo-scientific studies (UFOs and the like) as well as pseudo documentaries (Pawn Stars) which they achieve great successes with, they also tried out (mini) series. The Drama series Vikings is one of them. The first series was immediately able to win the audience over.

In the USA the channel aired censored versions of the episodes which often used alternate scenes. Thus there is no nudity, and some of the violence during the battles was toned down. However, the latter scenes are already quite graphic and only slightly censored here and there. In France they decided to air the completely uncensored version of the series.

The US Blu-Ray is uncensored but also offers a few additions to the plot. Whether or not these scenes were cut out for time reasons (so that the episodes are roughly 43 minutes long) could not be found out. We also do not know whether or not the scenes were included in the French broadcast. Thus this might be extended material which was saved exclusively for the Blu-Ray release.

The fifth episode on the US Blu-ray is overall 26 seconds longer than the TV Version.

17:23
Floki's girlfriend Helga is naked on the Blu-Ray when Björn asks her to help his wounded father. In the TV Version she wears clothes.
BD: 9.5s | TV: 10s

Blu-ray	TV Version

29:35
Floki and Helga invite their friend Torstein to a threesome. In the TV Version this is rather implied, while the Blu-Ray makes it very obvious.
10s

31:32
Rollo and the Earl intrigue. On the Blu-Ray the Earl postpones the conversation to a later point: after the wedding. In the TV Version you instead see Siggy.
BD: 15.5s | TV: 3.5s

Blu-ray	TV Version

38:10
Rollo is shown slightly longer inside the barn. In the TV Version you instead see a commercial break.
4.5s