Yes you're right the credit crunch is a figment of the medias imagination. Northern Rock would have run out of money anyway and all the big banks are using the opportunity to slash their profits and share prices and are drastically reducing the amount they lend because at heart they are b4astards.
ps agree that the panorama prog was shit
This isnt accurate either. Basically Northern Rock bought in their product for one price (in their case, borrowed from banks) and sold it on at another price (in their case fixed rate mortgages).
If they borrow at 5% and charge 7% (for example) to their mortgage holders then happy days they make 2% (very simplistic I know).
When the banks stopped lending so freely to each other and liquidity dried up, the interbank rates (Libor) increased sharply. This caused Northern rock to run out of money when they couldnt afford to borrow at the higher rates, or in some cases couldnt even get banks to lend to them. Hence the Bank of England emergency lending and the inevitable collapse.
They would not have run out of money had they been able to continue to borrow to fund their balance sheet as they always had