you can get it on dvd here......
after much searching i've found someone who has it available...
http://cgi.ebay.co.uk/Doc-Martin-Volume-1-NEW-PAL-Cult-DVD-Martin-Clun es_W0QQitemZ200276284581QQcmdZViewItem?hash=item200276284581&_trks id=p3286.c0.m14&_trkparms=72%3A1297%7C66%3A2%7C65%3A12%7C39%3A1%7C 240%3A1318
at the time of posting they claim to have 500 in stock, they must have bought the lot!