We've all been there: You moved your TV or computer monitor with bare hands and got it all greasy, or you splashed a bit of liquid on it in sports- or video-game-fueled excitement. How do you clean your screen? Be sure to check out our list of the Best TVs, Best OLEDS, Best Cheap TVs, and How To Buy a TV. We have a guide to the Best Computer Monitors too. As usual, all our latest coverage is on our Televisions page.

Technologies such as robotics, 3D printing and artificial intelligence are poised to reshape where we live in the coming years. Augmented reality could beam a'holographic' Gordon Ramsay into your kitchen, to offer cooking tips as you fire up the induction hob. Every surface in the home could be transformed into a touchscreen that operates different tasks, walls can turn into windows on demand and your house could double as a food-growing farm. Augmented reality could put a virtual chef in your kitchen, talking you through meal plans. Walls, floors and ceilings might be able to transform themselves in response to voice commands, with nanotechnology turning walls solid or translucent or into a giant TV screen.

Rats not only enjoy being tickled by humans, but they do happy little jumps when watching other rats get tickled, a new study shows. In experiments in Germany, rats were filmed while watching an experimenter tickle another rat on the other side of a transparent barrier. When rats saw others get tickled, they experienced something known as'Freudensprünge' – a German term meaning'to jump for joy'. What's more, the mere observation of others being tickled induced'laughter' in the rats, inaudible to the human ear. Researchers in Germany made rats watch others being tickled and studied their responses.

Nintendo on Thursday released the name and video image of its yet-to-be launched video game product. To be called Switch, and launched next March, the product is aimed at breaking the boundary between portable and console games. It had previously been known by the code name NX. Users will be able to play Switch by connecting it to a TV, or using it as a portable gadget, like the Nintendo DS or Game Boy. Although details have yet to be announced, the three-minute video uploaded on Nintendo's corporate website at 11 p.m. Wednesday shows an actor playing the gaming system at home via TV, and converting it into a portable device using a controller called the Joy-Con. When played without a TV screen, a user needs to attach two small controller pieces -- Joy-Con (R) and Joy-Con (L) -- on both sides of a hand-sized monitor.

Nintendo on Thursday released the name and video image of its yet-to-be launched video game product called Switch. The product, to be launched next March, is aimed at breaking the boundary between portable and console games. It had been previously called by its code name NX. Users will be able to play Switch by connecting it to a TV, or using it as a portable gadget, like the Nintendo DS or Game Boy. Although details have yet to be announced, the three-minute video uploaded on Nintendo's corporate website at 11 p.m. Wednesday shows an actor playing the gaming system at home via TV, and converting it into a portable device by using a controller called the Joy-Con. When played without a TV screen, a user needs to attach two small controller pieces -- Joy-Con (R) and Joy-Con (L) -- on both sides of a hand-size monitor.