Apps on smart TVs either come pre-installed, or are available to download from an app store. Most smart TVs offer TV and film streaming on services such as Netflix and Amazon Video, catch-up TV on apps such as BBC iPlayer, and social networking on Facebook and Twitter.
Most smart-TV models have built-in web browsers allowing you to surf the internet and view web pages, photos and videos from the comfort of your sofa. However, some are much easier to use than others.
You’ll need an internet connection to get your smart TV online. Most smart TVs are now wi-fi enabled, meaning you can wirelessly connect them to your internet router and other devices like smartphones. You can also connect your TV using an Ethernet cable, but if it's not close to your router then you'll need a long lead or a power line adapter.
Smart TVs are available from all the major manufacturers - including LG, Panasonic, Samsung, and Sony - but each has its own strengths and weaknesses.
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