I have a video sender setup from Maplin's. In order to be able to view the Sky box and DVD(Recorder) I built a scart lead with a fly lead for the video sender. As the Sky box is daisy chained through the DVD to the TV I am able to view either via the video sender. I too have problems with the remote extender. It does not work with the sky remote and requires a small transmitter to be placed ahead of the device you are trying to control. I have junked this bit and have to trail downstairs to change things. Not ideal but I got the video sender cheap in one of Maplin's sales.
This is like the lead I built
http://www.maplin.co.uk/Module.aspx?...Scart&doy=25m2 But this is for audio only. I also tapped into the video feed.
The TV does not have to be on just the device you want to view.
[Edited on 25-2-2006 by chrisw]