A new video-streaming service that limits the length of its programmes and shows to bite-sized chunks will launch in the US in April.Quibi also keeps the action full-frame however viewers hold their phones.It will feature exclusive entertainment content made by the likes of Steven Spielberg, Bill Murray and Reese Witherspoon.And unlike Netflix, it will also screen specially-made news bulletins made by the BBC, NBC and Telemundo.But will audiences pay $4.99 (£3.80) a month to watch it with adverts or $7.99 to go ad-free?BBC Click's Spencer Kelly met founder Jeffrey Katzenberg and chief executive Meg Whitman at the CES trade show in Las Vegas.