Anyone buying a Sky HD box and subscribing to the Sky HD service between April 26 and July 10 is eligible for £100 cash back on Sony BRAVIA TV sets of 26in and over - excluding U-series models.

Sky's box costs £299 and a subscription is paid as £10 on top of the normal Sky digital subscription. The selection of HD channels available will depend on what non-HD channels are included in the base subscription. Installation of Sky HD is free but only until June 30.

Cashback forms are available from electrical retailers and on line at http://www.sky.com/hd. To claim the money, customers have to attach their original TV sales receipt to the completed claim form - remember to keep a copy, because proof of purchase is usually necessary to claim on a guarantee - and provide their Sky viewing card numbers. Forms have to be sent to:  Sony/Sky TV Cashback Promotion, PO Box 100, Diss, Norfolk IP98 1SY.

For detailed information about Sky HD, check out these recent HEXUS.lifestyle news stories:

Sky HD goes on sale April 12

Sky now taking orders for HD TV service