In order to see whether some apps are running in the background on your Samsung smart TV, follow the steps below: Press the Home button on the remote. Now go to the TV's main settings menu. Scroll down to the Support option and press ok. Next, you need to select and enter the Self Diagnosis option. In the self-diagnosis submenu, scroll down to the TV Device Manager option. A screen with different stats will appear, and you'll be able to see the number of space apps running in the background is taking up. You can see what apps are running in the background and can also clean the running apps. Simply click on the Clean Now option under the Clean Running Apps option, and you are good to go.