"Two years later the set-top box Apple TV is back, and it's new and improved. An overhauled iOS-like interface gives the Apple TV a fresh menu system, but that's available to last-gen Apple TV owners through a software update. Still, the new model supports 1080p video and keeps its under-$100 price."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips