Is it possible to connect an external hard drive to an Apple TV?

Yes, it is possible to connect an external hard drive to an Apple TV, but not directly for the purpose of expanding storage for apps or media playback within the Apple TV's native operating system. An external hard drive can be used in conjunction with an Apple TV by connecting the hard drive to a compatible router or network-attached storage device (NAS) on the same home network. From there, one can access media files on the external hard drive using third-party applications available on the Apple TV, such as VLC or Plex, which can stream content from network-connected storage devices. However, the functionality is more limited compared to direct connection and requires additional hardware and setup.