Both new and existing Sky TV customers can get their hands on a £100 gift certificate through the firm's current Introduce a Friend offer.
For the next nine days, Sky is giving away rewards to TV subscribers who recommend a friend or family member to the subscription service.
Both the new Sky TV customer and the person who encouraged them to sign up can choose between a £100 M&S voucher, £100 Tesco voucher or £100 pre-paid Mastercard.
The offer has been extended, and is now set to run until Thursday July 10th.
In order to take advantage of the Introduce a Friend deal, Sky TV customers need to sign into their account and then send an invitation to join Sky.
All they need is the person's name and email address.
Once the friend's Sky TV subscription is up and running, both parties are able to claim their £100 reward.
There is no limit on the number of referrals individual customers can make. When sending out invitations, it is possible to include up to five different email addresses.
If all five people decide to sign up for Sky TV, the referee is able to claim five £100 vouchers in reward.
Sky will send out the gift certificates within 45 days of the friend's first Sky TV subscription payment being received.
New Sky broadband customers can potentially claim a £100 reward through Introduce a Friend - but they need to take internet services as part of a Sky TV package.
Prices start from £21.50 per month for Sky TV with the Original Bundle, a deal which includes home phone and broadband services.