You never know what’s going to be pulled down from your favorite social media sites. That means, if the show is removed, you wouldn’t have any way to access it. If you’ve already downloaded that information, however, you’ll be able to pull it back up and watch it over and over again, however frequently you want. You don’t have to worry about whether it’s going to still be available on the social media site you use when you go back to it.
Many services also offer a feature called versioning. This saves incremental changes you make to files as recoverable snapshots of the file. It's useful in case you need to get back information from an earlier version or if your latest file save becomes corrupted. Services vary widely in how many versions they keep and how long they're saved. Best-in-class services, such as SOS Online Backup and SpiderOak ONE keep an unlimited number of file versions forever.