Instead of reinstalling the app, Samsung TVs let you clear an app’s cache. This is the equivalent of clearing the cookies in your internet browser, and often it will solve random glitches in the app.

Fubo.tv/connect

Press the Home button on your Samsung TV’s remote control to open the smart hub. Click Settings in the smart hub menu. Select the Apps tab. Click System Apps. Select the fuboTV app. Click Clear Cache. Press OK to confirm. Via https://www.fubotv-c0nnect.com/