I've just had my second sky+ fitted. However it only has one input from the dish because it is housed in a built in unit with no way for the installer to fit another cable. This means however that it will only record the channel the box is currently set on, so to record something when I'm out I have to remember to set it on the right channel. Is there anyway to set up the sky+ box so that it recognises that there is only one input and change the channel accordingly? All help appreciated.