Places to watch UK tv

Some shows in UK are free to watch but you need to create an account in their webpage and you usually need a physical address (plus they have ads but maybe those I can skip). I don't live in the UK, so I'm unsure how to watch those shows. Torrents are extremely hard to find, even more of good quality. Does someone have some advice on this? In particular I was looking for certain cooking tv show contest, but not only that.