高端电视系统委员会（ATSC，Advanced Television Systems Committee）是1982年成立的委员会，订立用于数码电视的高端电视系统委员会标准（ATSC，Advanced Television Systems Committee standards）

ATSC系统原为取代北美洲最常用的NTSC制式。在ATSC规范之下，高画质电视可产生高达1920×1080像素的宽屏幕16:9画面尺寸──超过早前标准显示分辨率的六倍。然而，许多不同尺寸的画面也有支持，所以高达六个标准解析的子频道可被播送在一个现存的电视台6兆赫频道。

Advanced Television Systems Committee (ATSC) standards are a set of standards developed by the Advanced Television Systems Committee for digital television transmission over terrestrial, cable, and satellite networks.

The ATSC standards were developed in the early 1990s by the Grand Alliance, a consortium of electronics and telecommunications companies that assembled to develop a specification for what is now known as HDTV. ATSC formats also include standard-definition formats, although initially only HDTV services were launched in the digital format.