Top Troubleshooting Broadcast reception There is picture or sound noise when viewing an analog TV channel. Print There is picture or sound noise when viewing an analog TV channel. Make sure that the antenna is connected using a high quality 75-ohm coaxial cable. Keep the antenna cable away from other connecting cables. Related topics Check these things first to troubleshoot your TV reception. Top Troubleshooting Broadcast reception There is picture or sound noise when viewing an analog TV channel.