We are a professional video production company based in Tenerife off the west coast of Africa. While editing some footage we filmed of the scenery around a property that we doing some short promotional footage for I noticed a blimp appear on the screen for a frame.On closer inspection it appears first on the left hand side of the screen, then dead centre, then on the right hand side of the screen. Moving so fast that it takes up only 2 frames of capture. When viewed slowly, both the far corner blips seem to snap into view while the centre one fades in and fades out and there does not seem to be any natural progression from one to the other, although it is moving so fast it might be that the camera just didnt capture it.It could also just be a glitch in the camera/tape/capture.