Hi, hopefully this is just a quick question that someone can answer. I have a Panasonic 28" widescreen tv, and I have my DVD player in the RGB scart 1, and my sky box in scart 2 When I turn the DVD or digibox on, the TV auto switches to the source it detects, and displays EC1 or EC2 respectively. The quality is not always that good. However, if I then manually select the TV/AV button and choose AV1 or AV2, I get a better picture. My question, therefore, is what is the EC1 mode, and why does the TV not just go straight to AV1 when it detects a source? Thanks!