Radio had and to a lesser extent has a similiar effect - and it was also a robust vector for (dis)information. However it had bandwidth limits and centralizatio

Radio had and to a lesser extent has a similiar effect - and it was also a robust vector for (dis)information. However it had bandwidth limits and centralization over limited airwaves. Plenty of disinformation was passed before but it was limited to those who had permission or ability to act without it without any consequences.