Please forgive my ignorance with this but i'm very new to home cinema and need a helping hand. In my AV Receiver manual it suggests connecting a video component cable from my DVD OUT to my AV IN and then connect another video component cable from the AV OUT to the display IN. Is there a reason for going via the AV Receiver ? Why can't i just connect straight from DVD player to TV ? Any cable recommendations also for best picture quality (bearing in mind i'm still using a CRT Sony tv at the moment) ? Thanks for any help / opinions.