480i和480 p称为标清(standard definition sd)格式，480i的品质基本等同于模拟电视信号。
The 480p and 480i formats are called the SD (standard definition) formats, and 480i is roughly equivalent to a normal analog TV picture.
高清电视并不像标清电视那样平常，但是如果这个榜单上其他的科技进步有所暗示的话，这将会改变。
HD television is still not quite as common as standard definition but if the other advancements on this list are any indication - that is about to change.
该硬件系统解决了有线电视信号输入、高清、标清视频显示、音频播放、电视节目的存储和红外遥控的硬件实现。
The hardware implementation of cable TV signal input, HD/SD video displaying, audio playing, storage of TV program and infrared remote-control has been resolved.
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