Where to find Series 4 of Mind Your Language?

Hello everyone.

As you have voted for this episode, I assume that you might have probably watched the first (or some) episode(s) of the fourth season/series. How have you?

Many people claim that the last season is probably lost by now, has rarely been aired on TV, and a very few people have had the chance to see it.

I would really appreciate if any of you gave any information to try to find the last season anywhere: on-line, TV, DVDs, etc.

Thank you very much.