While you can't view your entire history, you can view all of your titles in your Continue Watching category via your Account Settings. Here is the direct link to view your Continue Watching: tubitv.com/account/history.
If you are not signed in to Tubi on your web browser, you'll be asked to sign in. Please sign in and afterward follow the steps below:
- Click/Tap on your name on the top right corner of your screen.
- Click/Tap on Account Settings.
- Click/Tap on History & Queue.
Now everything in your Continue Watching list will be displayed.