| Term | Description |
| Adjusted earnings per share (EPS) | Adjusted profit for the period divided by the weighted average number of ordinary shares during the period. |
| Adjusted operating profit and margin | Operating profit excluding exceptional items. Adjusted operating margin is stated as a percentage of adjusted revenue. |
| Adjusted profit for the period | Profit for the period adjusted to remove remeasurement of all derivative financial instruments (not qualifying for hedge accounting), exceptional items and related tax effects. |
| ARPU | Average Revenue Per User: the amount spent by the Group's residential subscribers in the quarter, divided by the average number of residential subscribers in the quarter, annualised. |
| Churn | The number of DTH customers over a given period that terminate their subscription in its entirety, net of former customers who reinstated their subscription in that period (where such reinstatement is within a 12 month period of the termination of their original subscription), expressed as an annualised percentage of total average subscribers for the period. |
| Customer | A subscriber to a DTH service. |
| DTH | Direct-to-home: the transmission of satellite services with a reception through a mini-dish. |
| EBITDA | Earnings before joint ventures, interest, taxation, depreciation and amortisation is calculated as operating profit before depreciation and amortisation or impairment of goodwill and intangible assets. |
| Free cash flow | The amount of cash generated by Sky after meeting obligations for interest and tax, after all capital expenditure and net cash flows relating to joint ventures and associates. |
| Gross margin | Revenue less programming expenses and variable network costs as a proportion of revenue. |
| Gross profit | Revenue less programming expenses and variable network costs. |
| HD | High Definition. |
| Multiroom | Installation of one or more additional set-top-boxes in the household of an existing DTH customer. |
| Net debt | Net debt is defined as borrowings, net of cash and cash-equivalents, short-term deposits and borrowings related financial instruments. |
| Product | Any service chosen by a Sky customer. These include DTH, Sky+, Multiroom, Sky+ HD, Sky Broadband and Sky Talk. |
| Sky Broadband and Talk | Residential Sky Broadband and Sky Talk customers. UK Online customers are excluded from quoted subscriber figures. |
| Sky+ | Sky's fully-integrated Personal Video Recorder (PVR) and satellite decoder. This includes Sky+HD decoders. |
| Viewing share | Number of people viewing a channel as a percentage of total viewing audience. |