I have noticed a few ebay sellers trying to sell a link to the following site, which allows you to watch UK 'Freeview' channels. After taking around £1 (some as much as £3) , they just point you to a website which is free to sign-up to anyway.
Go to www.tvcatchup.com and sign up. There are no charges, fees and the site is advertisement supported. Most channels can be watched just after watching a 20 second advert.
So save yourself a quid, and just sign-up and use it for free. It works on iPad/iPhone/iPod Touch as well as PC/MAC and PS3.
Have fun and happy viewing. This is UK only by the way