Terrestrial television broadcasting involves transmitting radio waves through antennas to transmit video and audio content to television receivers. It supports two main standard screen formats: 4:3 with a resolution of 720x576 pixels and 16:9 with 1920x1080 pixels for high definition broadcasts. Terrestrial broadcasts can be recorded using a video tape recorder that works by converting the radio signals into a magnetic recording on tape using a rotating video head.