Sling TV is a live streaming service that allows users to watch television shows and movies online. The service is available on a variety of devices, including computers, smartphones, and tablets. However, some users have reported that they have been unable to cancel their subscription at any time. This may be because the service is subject to terms of service that require users to continue using it even if they no longer want to watch television shows or movies. If you are not sure whether you are still able to use Sling TV after your contract expires, please contact customer support.