Only about 20 per cent of the channels offered to most cable and satellite subscribers are available in high-definition formats and very few are available in the highest 1080i or 1080p resolutions .
目前向多数有线和卫星电视用户提供的频道中，仅约有20%播放高清格式的内容，而其中最高分辨率为1080i或1080p的内容则少之又少。
1080i