Each here works with one monitor (see below for some dual-monitor suggestions) and allows you to switch among two or four PCs using one set of peripherals. They all use HDMI cables (instead of VGA or ...
The best modern TVs come with a few HDMI 2.1 and 2.0 ports to help you connect all your devices together, but if that's not enough, or you want greater control without reaching behind the TV, an HDMI ...