Should I update my Apple TV

Marta,

The Apple TV HD and 4K are huge upgrades over your older Apple TV. First, you have the App Store so you can get many more apps than your current hard wired device has. If you are a gamer, you can also get games apps and connect a gaming controller to the Apple TV. You can also use it as a home automation hub, meaning if you to automate items like speaker, lighting etc. you can do that. Finally you will have a much more robust library of viewing available to you. I have 3 older Apple TV's and 1 Apple TV4K. I use all of them but the 4K is by far my favorite.

Your current TV is likely not a 4K device, so a Apple TV HD would be fine with it. However, if you have any plans at any point in the future to upgrade to 4K then get the Apple TV4K. It will work virtually the same as an ATV HD but when you get a 4K TV, connect it and begin watching 4K content it will be a whole new viewing experience.

The Apple TV is a great device, I use mine everyday. The advantage is you have all your Apple media accessible on it and can add apps, games and other tv streaming channels. It also works as your home hub for smart devices.

Can I just point out amongst all this excellent advice, that we here are not Apple. This is a user community made up from folk that use Apple equipment on a daily basis and gather here to help others.

Do you buy old equipment?

Apple TV boxes do not qualify for Apple Trade In.

Yes, as long as the Samsung has an HDMI input it will work just fine.