Most television series are protected by copyright. Downloading a repack of a show you do not own (or that is not in the public domain) via an open directory is technically copyright infringement, identical to torrenting.
However, there are legitimate uses:
This is the uncomfortable part. Finding an open directory via an "index of" search does not make downloading from it legal. index of 1080p parent directory series repack
Here is the reality:
The Risks:
File Directories and NAS: If you're referring to accessing files on a local network or a NAS (Network-Attached Storage) device: Most television series are protected by copyright
Direct Download Links: Sometimes, direct download links are shared on forums or websites. Be cautious when using these links for security reasons. The Risks: