I just ordered the Italian BD set of Batman the Original Series, in the UK this is around £50-60 but the Italian version including postage cost me £17.17!!
The front of the box is in English, the disc menus are in English as well as the print on the discs, the back of the box is in Italian.
Amazon.it | Batman - La Serie Tv Completa (1966-1968) (13 Blu-Ray): Acquista in DVD e Blu ray