When the Great British Bake Off moved channels, going from BBC2 to BBC1, the National Grid expected to see a surge each time an episode ended.In reality, they discovered viewers were sucked in by a clever bit of scheduling.”Then BBC went straight on to some nature programme where they had 10 baby pandas on screen,” Mr Caplin said.”Nobody in the entire country moved from the TV screen. There was no pick-up at all.”However viewers would have been left with little to do but switch the kettle on this weekend as Netflix suffered an outage lasting nearly three hours. Netflix is currently the most popular subscription streaming service in the country. Nearly a quarter of the country use the service, with Amazon Instant Video a distant second in popularity. The dramas of the Mitchell family in EastEnders used to prompt large surges in electricity useCredit:Kieron McCarron Services like Netflix have changed the way we watch televisionCredit:Elise Amendola/AP Last year time-shifted viewing accounted for 13 per cent of the way British people watch television – up from about six per cent five years earlier. A power spike of 2,290MW occurred in 2001, after around 20m viewers finally discovered who shot Phil Mitchell in EastEnders.On average 15 years ago an episode of EastEnders would prompt a pick-up in electricity use of about 660MW. Now that figure is much lower, at more like 200MW. However some events can still attract so-called “appointment to view” audiences, like big sporting events such as the football World Cup. Jeremy Caplin, forecasting manager at the National Grid, told the Financial Times: “We see as many [spikes in demand] but they are much, much smaller than they were. The way that people watch TV has meant that they have come down in size.” Even Bake Off doesn’t prompt a spikeCredit:Love Productions The traditional surge in demand for electricity as British households switch on the kettle at the end of a popular television programme is on its way out thanks to on-demand services, the National Grid has said.With the growing use of online on-demand services and catch-up services, like Netflix and BBC iPlayer, as well as the ability to pause and rewind live television, it has become less likely for the nation to rise simultaneously from their sofas. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.