Right I log into the C4 press site everyday for current news on BB as now is normally the time they start to post things. Just logged into the C4 press site today and was presented with week 22 listings(Saturday 24 May 2008 to Friday 30 May 2008), it states, on Friday 30th May that 8:00pm as TBD and 1:45am as TBA.
Now if C4 were to follow suit on the previous Friday (the 23rd May), they would show the next episode in the series of DEADLIEST CATCH.
Now this may be nothing, but I find it ironic that the gap between the TBD is until 10:00pm, the normal running time of launch night. And 1:45am, when the Live feed would begin.
Make of it what you will.... I will continue to speculate.
Overall, Big Brother 9 may be launching on May 30th