A certain regional station was getting sick of loosing their first commercial in each ad break married with the constant risk of being knocked off air earlier this week. Taking a relay program they rang the tech at 'the other end' and were told 'sorry the problems at your end.'

One smart cookie suggested they ring other stations taking the same program to see if they had the same problems. Bingo! Upon comparing notes the stations knew there was no way they could be the cause as they were all experiencing the same problem. Quick phone call to the relaying station and the problem was fixed. Remember that's one pulse, not two!