The Very Best Of Sky News On Catch Up TV
Sky News trades on up-to-the-minute, fast, accurate breaking news. Catch Up TV does the opposite - letting people select content hours after broadcast, at their leisure. So why are we launching a catch-up news service?
It's the viewers' fault. "They've become more discerning and selective," says Tim Miller, launch editor of Sky News On Demand.
Catch-up TV viewing now accounts for a fifth of UK viewing time - around six hours every week. And that surge is actually being driven by TV, not tablets or computers.
According to Ofcom, 42% of all video-on-demand viewing is via TV - more than tablets, smartphones or laptops - up from 35% in 2011.
"TV VOD is on the rise as more people connect their sets to the internet," Ofcom says, citing the increased availability of internet-enabled TVs and set-top boxes.
"There is an increasing demand from customers to control the news they watch and when they watch it," Miller says.
"That is exactly what this news catch-up service delivers. It is a TV service where the customer is the news editor."
But what about that tension between news and catch-up? Sometimes you switch on the news to find out what's going on generally, right now - and Live TV can't be beaten for that.
Sometimes, though, you want the latest on a particular story, whether it's the missing plane or the Turkish mining disaster.
Sky News On Demand lets you go straight to a short, focused analysis.
We've also been experimenting with longer, half-hour programmes - like our specials on the Oscar Pistorius trial. Programmes that fill you in on everything you need to know for that topic, that day.
Other one-off programmes, like Asia Correspondent Mark Stone's brilliant recent documentary on North Korea's "Defectors", have an enduring appeal beyond a particular news cycle.
Other types of report also last longer - especially showbiz and (ahem) tech. Reports on the day's court proceedings will date quickly - but a report on a breakthrough invention remains interesting for a long time.
And then there's the Vault - containing the most important archive footage from 25 years of Sky News, from the fall of the Berlin Wall to 9/11.
It's analogous to how the digital revolution changed newspapers. Previously, you bought a paper and you didn't choose what went in it - even if you weren't interested in sport, you paid for it. Now, people read digital newspaper stories on the topics they're interested in.
As TVs and set-top boxes finally join the internet, broadcast news is being unbundled too.