You can use YouTube TV on up to three devices at the same time if you're subscribed to the basic plan. Devices can be any combination of computers, smartphones, tablets, streaming devices (Roku and Apple TV), smart TVs, and game consoles.
Youtube TV – How many screens do I get – How many devices can I use at the same time? – Review
To enable unlimited streaming at home, upgrade to the 4K Plus add-on. In addition to removing the three-device limit, the add-on brings 4K support and offline playback.
You can watch YouTube TV at home or on the go. The only catch is that you have to log in to your account at least once every 3 months while in your home area. This rule is because YouTube TV offers a certain number of channels per region.
If you have the YouTube TV Base Plan, you cannot download content to watch offline. You can only watch YouTube TV programming with an internet connection.
