I've been watching this series for a few years now, mainly on TV.
However, since moving into my student accomodation, I cannot watch TV anymore, so I decided it was time to actually buy the DVD's. I didn't start with the normal Series 1, i'm not like that! (Haha) I decided instead to buy season 4 & 5.
This season is very good, I was surprised to find that I had only seen a handful of the episodes, and therfore, it was a delight to watch.
Very good series, all of the episodes are well worth a watch, for someone who is interested in crime TV shows, it isn't too fake and is very easily interesting.
For the price, definately worth a buy! You won't be let down!