How much nudity is allowed to be shown on European television?

Some friends and I were talking about this, and we weren't really sure if Euro Trip, the movie, was a reliable source. How much nudity is allowed to shown on European television? Is it stricter in some countries more than others? I just want to know so I don't make any false conclusions.

In Europe they show everything. On Sex and the City for example, they actually show the sex scenes (with the nudity) in them.

Less than the United States it is pretty much illegal on European television.