How do you get ads from scrolling on the welcome screen on a samsung tablet?

Welcome to Android Central! Which tablet? Some devices are sold cheaper because they include ads (primarily devices sold through Amazon), but I don't recall seeing any Samsung tablets like this -- they're usually Blu or Moto devices. It's probably either adware that got installed alongside some other app, or it's a preinstalled app that has sneaked in some annoying ads without telling you (Peel Remote has a history of this). If you have Peel Remote, uninstall or disable it. If you don't, you may have to uninstall apps one by one until the problem goes away.