Can I use the Lifetime app if my TV provider doesn't support it? Yes! There are lots of full episodes, clips, movies and more to watch—even if your TV provider isn't currently supported. Related articles What's the difference between watching while signed in and watching while not signed in? Do I have to sign in to use the Lifetime app? I subscribe to YouTube TV. Can I watch Lifetime? What devices does the Lifetime app work on? How often is new video added to the Lifetime app?