My Spectrum app worked fine until.....ROKU deleted it and removed it from my purchase/download history. Guys, I am NOT part of your quarrel until you made me a part of your quarrel. Very shady removing the app and deleting my purchase history of the Spectrum app WITHOUT ANY notification. I would expect this to happen in a communist country, not here.
Actually seems more capitalist (industry/corporate control) that communist (government control), since two corporations are involved in the issue (and no government).
Political damnation aside, if you used/activated the Roku Spectrum TV app before mid-December, you can call them up and explain the deletion etc, they will verify your previous usage and provide you with a link to download/install it again.