Media
Television
The Largest TV operator in Portugal is RTP, who have two terrestrial TV channels providing a mixture of news, entertainment and sport. There are also a couple of independant stations. Foreign language channels from many other countries are available on cable and satellite. As far as English is concerned, this is the usual mixture of CNN, Bloomberg and the insanely dull BBC World, as well as some of the programmes on Eurosport and MTV.
Newspapers
The main national newspapers are Correio da Manha, Diario de Noticias and Publico. All of these have at least a basic online edition on their websites. Major cities also have free newspapers, available on public transport, such as Metro and Destak. These provide basic news and entertainments listings.
It is fairly easy to get hold of British newspapers on the Algarve - in fact several of them are printed there for the benefit of the British tourists. Apart from this, international newspapers are not that easy to find in Portugal. Try looking in actual newsagents shops rather than on the stalls at street corners. Shops in airports and train stations also seem to stock them more often than other stores.
There are no national English language newspapers in Portugal, although there are a couple of freesheets covering the Algarve area - these are fairly easy to find scattered around in shops and tourist information offices.