free-to-air
adjective /ˌfriː tu ˈeə(r)/
  /ˌfriː tu ˈer/
[usually before noun] (British English)- (of television programmes电视节目 免费收视的 - The company provides more than 20 free-to-air channels.公司提供 20 多个免费收视频道。 
 
- The company provides more than 20 free-to-air channels.