YouTube TV is Google’s brand new TV service, and as with any new service, it started out slow. Google is working on improving it, and the first step is to add more channels.
Google has added AMC, BBC America, IFC TV, Sundance TV, Telemundo, Universo, and We TV to the standard YouTube TV lineup. This is great news for those who currently have the service, though this is very few people.
Now that YouTube has been out for a while, Google should be working on expanding the service beyond five cities. Hopefully this happens soon!