It's easy to find yourself with more sources for your TV than it has inputs. Most TVs just have three or four HDMI ...
These days, if you need to connect two devices via wire, you'll most likely use HDMI. This display protocol supports all sorts of device pairings. It lets you use your iPhone with an external display, ...
Some monitors and TVs only have a single HDMI port. This is fine if your entertainment system is simple, but if you have multiple devices, it can get really annoying to plug and unplug the HDMI port ...