11. CBS owned-and-operated station WCCO-TV has an over-the-air signal that reaches just short of Mankato proper. 12. CATV was, initially, only a re-broadcast of over-the-air signals . 13. For a time, however, it operated at low power, leaving Pierre without an over-the-air signal . 14. The Air Signals Corps was put under severe pressure. 15. On these large reels of tape would be recorded the air signal at super-slow speeds. 16. It also features live streaming of its air signal , and Associated Press Video network news. 17. He conceived and set up the Air Signals Corps. 18. Before then, its over-the-air signal was effectively limited to Virginia Beach and parts of Norfolk. 19. Since its over-the-air signal cannot be seen in eastern parts of the Piatt County line. 20. However, the on-air signals were eventually brought back.