The most common sysyen used in the area is provided by Telmicro Levante and uses a microwave signal and a square nesh aerial to deliver the system and I have this in 2 other properties locally
you can get information from lots of installers websites by searching on their name
There will also be a signal dleivered by the coax points in the property as by law the builder has to provide a spanish TV signal via central aerials
Install cost €499 and €20 monthly for all the nomal systems but this technology, which uses a decoder box and card in the house, does not currently allow for broadcast of HD
The sensible thing is to get this system added to the communial system
There are also deals on installation around on a regular basis with a €1 install fee
Because the connection to the box is via a scart lead and the tuner for the digitial box type system is not used it does not matter if the TV comes form the UK or Spain howvever LCD and Plasma TV´s are, if you know where to look, the same price or even cheaper in Spain so there is little benefit in bringing one from the UK
The only issue would be using the spanish system which is different from the UK
The only way I use HD is from a PS3 games abd DVD player and the HD lead