Unlike mobile books and games, video streaming is completely dependent on an internet connection. That's fine when you're at home, but if you're on your way to work or generally on the move, viewing your favourite movies and TV shows can be quite a hassle. Recognising that people might want to keep kids quiet in the back of the car or enjoy a quick episode on their way to work, Tesco's Blinkbox is now letting customers download films and TV episodes for offline use. Currently, you'll need an iPad to take advantage of the feature, and even then you'll still need to actually buy or rent the video you want to watch via a browser (instead of in the app). However, once you've done that, it's a simple case of hitting the little download arrow next to your chosen title before heading out of the door (assuming you're already connected to WiFi).