I received today the disc and, contrary to some reviews, the disc is not dual side. So it doesn't require to turn the disc over half-way through the film!
My rating regards the image quality of the dutch release of the first season. The show itself gets a 5 star rating from me.
For those of you who don't know this show my only advise is buy the DVD because it's great. My only advice is buy the british release (the cover with Erica, Dr Tom and the watch). Although the first episode quality is probably the worse I've ever seen on a DVD (really grainy) the other episodes are ok.
Beware of the dutch release (the blue and pink cover with the doors), the picture quality is awful. The image is really dark and with a red hue. So bad I had to purchase again the first season but this time the british release.