All the boxes connect to your broadband router and to the TV via a HDMI socket and all recent TVs sport one of these.
Before the end of the year, Apple will launch its TV app in the UK which gathers together all your programming – purchased i Tunes programmes, Netflix content and more – in one place.
This box doesn’t have an aerial connection so terrestrial channels aren’t available here.
Amazon Prime Video has a persuasive amount of great content, too.
This is the latest, top-of-the-range, fully-featured box from Sky.
It uses an apps system to rent or buy movies, buy TV shows and download more apps.
These include Netflix and, soon, Amazon Prime Video.
If you don’t have a 4K TV, there’s an HD version still available (£149).
Both versions have a microphone in the remote to search for movies and to control the box. ” and the box replays the last 15 seconds with subtitles.
One box (Amazon Fire TV) offers the highest-quality 4K (or Ultra HD) resolution, but note that you need a fast broadband connection to stream this.
Sky Q also has 4K capabilities but you download the content first so streaming speed is not as important – though a slow connection will take a long time, so plan ahead.
Others offer the best of both worlds, like the Sky, Now TV Smart and Humax boxes, which access regular programmes through satellite or aerial and use broadband for catch-up services or the vast range of on-demand movies and box sets from Sky, for instance.