free-to-air
/ˈfriːtəʊˈeə(r)/adjective
- denoting or relating to television programmes broadcast on standard public or commercial networks, as opposed to satellite, cable, or digital programmes available only to fee-paying viewers（电视节目）不通过卫星广播（或有线广播、数字广播）的, 通过普通公共（或商业）电视网广播的, 不锁码的, 免费观看的。