If you have a new build property or had an electrician update a property and left the cables for the tv aerial sockets, if you need them connecting to a tv aerial then we use an internal splitter which will distribute the signal around the points evenly. www.tvaerials.biz/
If you are in need of a tv aerial sometimes it is possible to fit a new digital aerial in the loft.
A lot of this depends on what the roof is and is the tv aerial just pointing through your roof, also the line of sight to transmitter and how strong signal is.
If you get in touch we can give you advice on this sometimes unfortunately it has to go outside.
Ask for Andy or Bob www.tvaerials.biz