Universal Pictures released House MD on bluray in UK, Germany and France. Elizabeth is a guest star in 1×05. The version they’re selling in UK and France are region free so they work everywhere, but while in France and in Germany (both with audio in English) you can buy just the season with Elizabeth, if you want the English version they only sell all the 8 seasons together.
Both Ste and I bought the German version. On Amazon they say it’s region B, but on the back cover there’s no info about it, so it’s probably region free as well.
We created a page with the versions we have also of the DVD sets. You can see them HERE.
Elizabeth Mitchell - House - Projects