Hi! For browsing without ads on your Hisense A6 series, you can use the Mozilla Firefox browser. It has a built-in ad blocker that can help you have a smoother browsing experience.
As for streaming anime and movies, you can consider using apps like Crunchyroll, Funimation, Netflix, or Amazon Prime Video. These apps offer a wide selection of anime and movies for you to enjoy on your Smart TV. Just make sure to check if these apps are available for download on the Hisense app store.
Keep in mind that the availability of apps may vary depending on your region, so you may need to check the Hisense app store to see which apps are compatible with your device.