Andy is trying to do Facebook Live with multiple cameras, but he gets a delay every time he switches through the HDMI switcher. Leo says that an HDMI switcher is not the same as a switcher in a control room, and it can cause latency. Leo says that Blackmagic makes a video hardware switcher that is very low priced to get into this game. It's called the ATEM Switcher.
Leo says that the MEVO camera can also do it and you can switch with your mobile device. There are also streaming options like BoxCast, which can take 4 cameras and control it with your iPhone or iPad.