There are 5 English channels
BBC1, BBC2, ITV1, ITV2 plus Sky News.
There is also Eurosport . . . but in German !
If the TV has a digital tuner (built in or stand-alone) then all the Spanish TV channels are also available. Some of which you can reset to show in original language - which is most often English. Films and the American series (like CSI and NCSI) are deffo available in English.
Otherwise you will need to get a UK TV package installed. Teleast Digital who have a shop in Los Alcazares (labelled Internet Mar Menor) is the supplier that everyone on Roda uses. The charge is €50 installation and the €22 pm - minimum 3 month contract.
Alternatively, if the apartment has WiFi you can always watch UK TV via the internet. PM me if you want more info about this.