When is Season 5 of Doc Martin Airing?

For all the British peeps here, when is the new season of Doc Martin airing?  Im over in the states so Im wondering that way I can see when to expect it on PBS or buy it on DVD.

immediately after season 2 of "Flash Forward" (hehe)

i didnt think they were doing anymore Doc Martin?

not been anything mentioned or filmed locally..[not that im aware of anyway]

Series 5 will be produced in 2011 and will have eight episodes.[13] It is expected to air Monday 12th September
http://www.itv.com/docmartin/