FilmOn allows you to watch some (all the main) UK TV channels in Italy for free. You need to select SD quality to watch on your computer. There is also a free app which enables you to watch on phones, ipad, etc.
Expat Shield allows you connect to the internet as though you are in the UK on your computer - so you can use BBC iplayer and itvplayer. There are two versions - a free version which has annoying adverts and a paid version.