I think ITV are essentially bankrupt so they'll be selling off anything they can to pay their debts (owed to the UK tax payer of course).
ITV own some great back catalogue from Beyond Films, Granada and lots of other companies and if someone came along and bought it -that would I hope be a good thing. Problem is ITV have been selling off stuff that shows up in Poundland and those 4 movie sets for £2.99. Here's hoping they're forced to break up their business soon.
As for the ITV
Strictly Ballroom the price did go to £40+ but I've seen it for £5 and even £3 in my local pawn shop. It' just takes a wee bit of time sometimes to find this stuff. The UPC is your best bet usually 5037115291233.
I have the beautiful hardbox of this on DVD. It's from the same source as the Blu-ray obviously but those very minor special features may never be seen again.
http://www.fox.co.uk/bluray