There's only been two releases of the whole series in a single box as far as I know. A german, and a french release. They are both released by Sony, and should be fairly english friendly. (except for the cover and the menus). The contents should be the same as the domestic US release of the seperate seasons, except for more audio and subtitle options.
amazon.fr
amazon.de
They cost 52 and 55 euro respectively. (~$64 USD, ~$67 USD)