Instructions:This was posted 2 months ago, but the code has now changed.
goto www.tescodvdrental.com and sign up using promo code TDRXMSRAF8 to get 3 months free dvd rental.
Just remember to cancel before the 3 months is up and return all disks or you will get charged.
Ive just signed up. Seem to have a very good selection including Bluray.
Offer ends 31st May 2009