There are a few ways you can do this. Personally, I didn't bother including the DVD in my home set up because most DVD players don't output the DVD out of a modulated aerial output. I just put a seperate dvd player in the bedroom.
First I brought the 2 sky coax cables (sky+) to the sky box with the digital aerial input coax. I linked the sky box to living room tv with a scart cable and configured the video output of the sky box to RGB for optimum video output. The aerial input for the digital and analogue tuners of your TV are taken from RF1 on the sky box(in a system without cctv!!!).
I ran another cable from RF2 (Sky magic eye output) to a DC pass aerial amplifier in the loft. DC pass is important because it allows the 12V from the sky box to supply power to the magic eyes on each TV. A magic eye allows you to use your sky remote in one room to control the sky box in another room.
Run cables from the amplifier to each TV in the house (except main room TV), my amp is in my loft. Some amps need 240V to run others use the 12V, personally I prefer to use 240V as the sky box can only supply current in mA.
If you intend to use wall plates to terminate the coax in each room do not use isolated wall plates. You are better running the cable from the amp straight into the tv, via the magic eye. I used un-isolated wall plates just because it is a neater job.
Have a look at this diagram too, not the best, but it gives an idea.
http://www.elecomms.com/Multiroom%20TV.htm
