David has multiple TVs and computers and would like to link them all together with a switch. Should it be managed or unmanaged? Leo says that networking is a high end technical topic. A router manages the traffic and routes it through to the proper device. Routers use QOS or "quality of service" to do it. A switch is still needed, though, and it reduces traffic. A managed switch would allow him to run protocols and control the network properly. Most people don't need a managed switch.
Leo recommends the Ubiquity EdgeRouter X. It's a five port router and switch, and the software allows for managed switch functions. It's only $50.
David should also check out PracticallyNetworked.com.