Amazon is starting to act like a TV provider. The service, which allows Prime members to subscribe to over-the-top premium networks like HBO, Showtime, Starz, Cinemax and others, now allows you to log into some of the networks’ standalone streaming apps, as well, starting with HBO and Showtime. That is, instead of entering in your cable or satellite TV credentials to gain access to the app, you can just enter in your Amazon account information.Launched in late 2015 as a “streaming partners program, ” Amazon Channels represents another way that Amazon is targeting cord cutters. The service offers access to premium networks – including both those that you used to only get with a pay TV subscription, as well as subscriptions to digital-only video providers, like NBCU’s comedy network SeeSo, Tribeca Shortlist, or Fullscreen, for example.While there’s a benefit from being able to organize your subscriptions to these services all under one roof, there have been downsides as well.If you wanted to watch a network’s videos, you had to do so through Amazon, for instance. The networks’ apps themselves were off-limits. That means you’d miss out on their unique features, whether that’s using their watchlist, browsing their recommendations or trending items, diving into their curated content collections, taking advantage of parental controls, and other options.That’s starting to change, thanks to recent updates from a couple of the top premium networks participating in the Amazon Channels