your in luck, I work for sky as an Engineer.
Firstly go to the main telly where your sky box is.
Using the sky remote press the following buttons.
go to RF
In this menu I would set the RF channel to 38 and turn the power ON and then down to save.
now leave it on the blue menu screen (sky menu)
go to the other room where you link from your sky box is connected to.
press the tv button on that remote and then select channel 6 on the remote
Then go into the menu for the tv and then to setup. go to MANUAL TUNE/SEARCH with most new tv you can scroll down to were it says C _ _ you can then input your channel number as 38 the same as you setup on your sky box.
Dont forget to save the settings and that should be you. You should be able to see the sky menu on the telly with the link on. (that is why I asked you to leave the sky menu on that way you know you havent just tuned it into your normal terrestrial channels.
The reason I told you to turn the power onto the link was so that you can purchase a Magic eye. This will allow you to turn your sky box over from the 2nd room without having to keeping going to the main tv to change over.
here is a link to a random site with a picture of a magic eye on. you can purchase these from many places or even Ebay. here is the link anyway.
hope this sort you out. If so please leave a thumbs up
Cheers Little Dish Fitter