Instagram recently launched IGTV, a new section in the Instagram application (and a standalone mobile app) that lets users watch videos that are up to one hour long. If you want to leave a comment on a video you’re watching on IGTV, our guide will show you how this is done.
Note: These screenshots were captured in the Instagram app on iOS.
Step 1: Swipe down on the video preview image at the bottom of the screen to make the browse menu disappear.
Step 2: Tap the comment button at the bottom of the screen. Note: If you don’t touch the screen for a few seconds, the user interface will disappear. You’ll need to tap the screen to make the controls reappear.
Step 3: Tap “Add a comment…” at the bottom of the screen.
Step 4: Type your comment.
Step 5: Tap Post.