Whether you love happy endings or a dark reality in TV dramas,you could soon be able to decide what you get. Netflix,the TV-streaming company behind hit shows such as The Crown and House Of Cards,is working on ways to give viewers control of key plot decisions. Some of the storylines will be simple and linear,like the Choose Your Own Adventure books that many grew up with.For example,viewers might decide whether a prisoner in the drama Orange Is The New Black joins a gang (黑帮) or not. The technology could also potentially be used to allow Princess Margaret to marry Peter Townsend in The Crown,instead of having her relationship with the divorcee (离婚者) blocked by the Establishment.Other storylines will be much more complex,allowing viewers to connect plot points in a variety of ways using their TV remotes. A source said,"We're doing work on branch narratives (叙事) so you are actually making choices as you watch. All the content will be there,and then people will have to get through it in different ways.We'll see how it plays out. It's an experiment.We'll see if it gets much success.For creators,it's a new field." Actors would film numerous alternate plot segments (片段) in advance,letting viewers choose which route to take through the story.Netflix will run a trial with choose-your-own-adventure shows for children later this year, based on an established character.If they are successful,it will use the format for TV programmes aimed at adults. Netflix president Reed Hastings confirmed that the company is working on interactive shows,saying,"Once you have got interactivity,you can try anything." At least five million UK households are thought to be signed up to Netflix,and it is challenging traditional broadcasters.Earlier this year,BBC boss Lord Hall promised to reinvent the iPlayer so that it overtakes Netflix as a destination in its own right,rather than a catch-up service.