LCD TV Above Fireplace - Cables?

["Mark McCall" <lists@xxxxxxxxxxxxxxxxxxx>]

Friend and I both contemplating putting a flatscreen above the fireplace at
some point in the future. I'm gonna have to track walls obviously and I'll
like to make sure I have all the bases covered.

How have others done this?  Anyone left an accessible conduit so you can
get
an HDMI cable or whatever in when required.

I've read a bit from Google about mounts (an the need for Tilt).  Any other
considerations ?

Thanks

M.