Also beginning May 25, security changes will prevent Apple TV (1st generation) from using the iTunes Store. The company is introducing new security changes which will prevent those devices from using the latest version of iTunes. Second-gen Apple TVs are still compatible with iTunes, but be wary that they might be next on Apple's obsolete-item list. Meanwhile, you can access the Apple TV app on any iPad or iPhone.
On May 25, Apple will roll out security changes to the iTunes Store.
Apple is dropping iTunes Store support for Windows XP and Vista, hammering one more nail into the elderly operating systems' coffins. That certainly has to be a blow to the ego of original Apple TV owners. It will no longer be getting software updates and it will no longer have access to the iTunes store. That means no more new shows, and no ability to download shows you've already purchased.
In the meantime, the Apple TV digital player has reached the fifth generation supporting the 4k technology. iTunes has also been updated on a constant basis to the point that older computers are about to lose support.
Apple has declared that the first generation Apple TV is now an obsolete product. The newer Apple TV models haven't come close to that, but the need is no longer there now that you can easily and quickly stream your media content. Back in September 2015, Apple classified the box as "obsolete/vintage" and ceased customer support and servicing for it.