Because IGTV and Instagram work closely together, you don't have to create a separate IGTV login. As long as you're logged into the main Instagram app, all you have to do is hit "Continue."
This is the first thing you'll see once you're logged into IGTV. The app automatically pulls videos it thinks you'll like under the "For You" tab.
Under the "Following" tab, you'll be able to watch videos from creators you already follow on the main Instagram app. Under "Popular," you'll see trending videos from people you don't follow.
When find a video you'd like to watch, just tap on the screen to remove the tiles and make your video full screen.
Creators have the option to post links and more info along with their videos. To see that, tap on the video title at the top of the screen.
You can also like and comment on people's videos in IGTV. Just tap the heart or comment button at the bottom of the video.
IGTV has a lot of the same sharing capabilities as Instagram. You can get a direct link to a video, or send it in a direct message on Instagram.
If you pause in the middle of a video, IGTV will remember where you left off. You can find the video again under the "Continue Watching" tab.
If you're ready to start your own channel, just click on your profile picture wherever you see it appear. That will take you to your own landing page.
You can't record video inside the IGTV app — not yet, anyway. For now, when you go to add a video, it will pull it from your own camera roll.
But in Instagram's own IGTV videos, text and images are overlaid on the video, and it looks pretty similar to Instagram Stories. This may be a hint that shooting and editing capabilities will be available in IGTV down the line.
And for anyone who doesn't want to use the standalone IGTV app, the service lives inside the main Instagram app, too. Look for a small TV next to the direct messages button in the upper right corner.