I've had both of these for sometime now as I originally "obtained" a copy of the Lotus Eaters which had been shown on UK Gold but these have now been replaced by the official version (I know people can get touchy about these things!

but they weren't available commercially! Honest.)
Footscapes is correct in that the Ferryman series is a Dutch version, "Wie Betaalt de Feerman", but obviously in the original English and subtitles can be removed. I paid about £15, including post, some 18 months to 2 years ago for Ferryman off a Dutch eBayer and they are fully original. The Lotus Eaters, which I also eBayed, are still quite pricey as they've only just been issued in the last few months.
A guy called Dave Rice runs a website dedicated to Michael Bird, who was the author of the original episodes for both series & also the sleeve notes for the Lotus Eater DVDs. It's not a commercial site so I hope NewAdmin doesn't object to the link being posted
http://www.mjbird.org.uk/MJBTribute.htmlThere's a lot of background on the series & actors on there, plus what he knows of the locations. As my holidays & now my little bit of Crete are near Ag Nik & Elounda I take a particular interest in the locality & it's fascinating to see how it looked 30 years ago.
My little contribution for Dave's site was to identify the only non Greek location in either series, at the beginning of Ferryman, which was set at Heybridge Basin near where I live in Maldon, Essex.
Pete