I have one HD TV, and 3 Standard TVs. My question is this; do I have to have a second TV connected to the 622? What I am getting at is this; If I have another TV connected to the 622, will that keep me from watching a show and recording another at the same time? Also, will I be able to watch a show, be recording a show, and having the 2nd TV be wathcing a completly different show??