When a live TV/"streaming cable" service such as Hulu+Live TV experiences issues, you may be able to use the apps for the channels themselves to watch. For example, if you downloaded the Food Network app, you may be able to authenticate against Hulu+Live TV and watch from within the Food Network app.
This may not be your preferred way to watch, but if you have your favorite few apps set up and authenticated against your "streaming cable" service, when the service experiences an outage, you have a backup plan in place.
Roku Community Streaming Expert
Note: I am not a Roku employee.
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