Oz is a show from back in the 90's, its the mans version of bad girls, but it was pretty darn good, my favourite hbo show after sopranos.
the rrp on this is £24.99 and its been holding at around £15 since launch and if you are a fan or just curious i would recommend this to you, and hopefully simular prices to follow for 2-6 once they get the releasehttp://imdb.com/title/tt0118421/
the imdb page. worth a look if you have never seen oz before.
credit goes to jan08 from thedvdforums.com