The resume feature on the PBS site and apps easily allows you to return to a video and continue watching from where you last left off.
To resume watching a video on the PBS Video app on Apple iPhone and iPad.
Open the PBS Video app on your iPhone or iPad. At the top left corner of the app, select the menu icon, indicated by three horizontal lines.
Tap Viewing History. A list of videos you have previously viewed will appear.
Tap one of your recently viewed videos. You will then see the video's page where you will see a triangular play button on the video's image. Tap this play button and the video will begin to play from your last saved point in the video.
Note: Your Viewing History will only include videos that have been viewed for at least five minutes.