After selling 100 million devices worldwide, Google has extinguished its much-loved Chromecast line-up. These diddy dongles plug directly into the HDMI port at the back of your television and let you beam video and photos from your smartphone or tablet, or mirror the contents of a tab in the Google Chrome browser on the big screen. This practice, known as “casting”, gave the range its name. Chromecast was first introduced in July 2013 when most flatscreen TVs didn’t have built-in apps for the most popular streaming service or shipped with sluggish, buggy software. View Deal | Shop the latest F…