Try pressing the sky button several times after changing batteries, appears to have worked for me but not sure why.
Kevin
April 2011
If the remote is dead, you cannot fix it, they are made using descrete components. replace it. It would cost more to repair than it is worth, You may be able to get a suitable cheap universal remote from certain auction sites
SD
April 2011
Automatic Answer
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Try fixfault.com to fix televisions.