Life On Mars Season 2 on DVD

i just noticed that the season 2 dvd will be out on 16th april on play.com
play.com/dvd/dvd/gencd/3-/1102601/life_on_mars_series_2/product.html

i assume the last episode of the season will air before but its a bit quick
isn't it

what about primeval...? the dvd was scheduled for retail release on the monday
following the final episode on a saturday... preorders got theirs early and dvd
rips almost beat the airing on tv and beat the release of any tv cap.