Sure. It's true that some Vikings settled, including in Normandy (in exchange for guarding the Seine against other Vikings, just like in the TV show). And yeah, they also settled pretty large swaths of England, beginning with York, and founded Dublin, among other cities. The whole of England very nearly became run by the Norse but for a single battle at the end of a very long war of attrition.

The TV show was actually extremely historically accurate in terms of specific events (like jumping out of the coffin and murdering the priest). It was just also extremely inaccurate in terms of the characters, time periods, and geographic locations in which those events occurred.