Before diving into the specifics of the verification process, it is essential to understand the host platform. The Internet Archive (archive.org) is a non-profit digital library founded by Brewster Kahle. Its mission is to provide "universal access to all knowledge." While it is famous for the Wayback Machine (which archives web pages), it also hosts millions of free books, software programs, music concerts, and—crucially—television shows.
Since there is no official seal of approval, you have to verify the quality yourself. Look for these indicators in the item description: rockford files internet archive verified