I was watching The Natural History of the British Isles the other night and there was a bit where the RAF flew Alan Titchmarsh around the south coast, near the white cliffs of Dover. There was one particular shot where they past the cliffs, and the image was panning constantly left to right as they flew. It was quite a long shot, pretty spectacular. However, I found that rather than a smooth panning of image, I had an effect of the image 'juddering' across the screen in small steps. The TV is a JVC AV-28X4 TV, 100Hz. Is this problem due to the 100Hz tube?