What does a TV cost to run?
Modern LED tellies are cheap to run — but a big, bright OLED left on all evening still adds a noticeable amount over a year.
Typical model is rated 90W
Price cap is 26.11p
2p per hour, 1,460 hours a year, 131 kWh in total — about £3 a month.
A television's draw scales with screen size and brightness. A 43-inch LED might use 60 watts, a 65-inch OLED at full brightness closer to 150. Across an evening every day that difference is small in absolute terms but real over a year, and it is almost entirely within your control.
Turning down the backlight or brightness is the single biggest saving and improves the picture in a dim room anyway. Switching off the 'vivid' or 'dynamic' shop mode, and not leaving the set in standby drawing a watt or two around the clock, mop up the rest.
The short answer: Cheap to run, especially turned down from shop brightness. Standby draw is the only thing worth switching off.
What actually helps
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This is the small stuff
Every appliance on this site put together is usually less than a third of a typical energy bill. Heating the house is the rest of it. If the numbers here bothered you, the number that actually matters is what your heating costs — and whether a heat pump would make it better or worse in your particular house.
Work out your heating costOther appliances
Energy figures checked 2026-08-26. Electricity priced at the Ofgem cap for 1 July – 30 September 2026. Your own machine and tariff will differ — put your figures in above.