Why does Sky News

cut off all of their presenters when in full flow as their approaching the ad break? been doing that for years, if they have to pander to their advertisers and be super strict with timing then fair enough but then how is it the timing of the presenters then when they finish their interviews or signs off to the camera is so poor, for example "after the break we'll be talkin...." then cut. Itv or channel 4 never have similar issues