IDK, I have multiple friends that use my Fox Sports login to watch Brewers/Bucks. One tries my charter stuff on everything where you need to show that you have cable and it works. The funniest part is that I actually got rid of Charter in November and the logins still work. I have internet another way now and am still able to login to the Charter app and watch everything for free. I'm going to keep riding it for free as long as I can just to spite them, even though I hate not just having normal cable. 3 months so far. My dad has Spectrum and when I try to use it, what I described happens. I can watch Hallmark Channel but it will not allow me to connect to Spectrum live without being on their network, i.e., in their house. You wouldn't be able to use the Spectrum TV app but you should be able to use 3rd party apps like Fox Sports Go, ESPN, TBS/TNT, etc. Many networks offer their own app. As long as those channels are part of the original cable package you should be able to log into those using Spectrum credentials. For context, I believe the Spectrum TV app is a way to access your cable subscription without needing to use one of their cable boxes. Say you have 4 or 5 TVs in your household, having a box for each of them would get pricey, so you could use the app instead to cut down on the box fees. It's only intended for use at a customer's home.