Well, all the main 2009 ranges of TV/Blu-ray players etc get announced this week (you'll be able to read about it all here first!), with first new models coming into the shops from around March/April time - shops will need to shift bulk of 2008 stock by then, though we have heard of some popular models already selling out and/or going UP in price as demand outstrips supply.
Add the fact that many of the Japanese companies are putting up their prices because of currency issues and we could see all sorts of price fluctuations in the coming months.