You can always start episodes, movies, and specials from where you left off as long as they remain available to stream. If you're on the same computer and internet browser you started watching on, or on any computer where you've signed into your ABC account, there are a few ways to resume from where you left off:

From the homepage of ABC.com

1. Navigate to ABC.com
2. Scroll down to the Continue Watching section

From your Account page

1. Navigate to the Account page via the top navigation
2. Under Continue Watching, you can find the last 10 episodes, movies, and specials that you haven't finished watching

From the specific show's homepage

1. Navigate to the specific show homepage, like http://abc.go.com/shows/the-good-doctor
2. Scroll down to episode list or click on the episodes tab at the top of the page
3. All available episodes will be listed
4. Navigate to any episode that you have not finished watching and continue where you left off