The show's publish dates must encompass the dates episode are live in order for the episodes to appear in the Screening Room
Once a video has been uploaded and the circle appears in the lower right corner of the video's thumbnail.
To make an episode viewable to viewers assigned to the project, in the Screener:
1. Select 'Edit' over the thumbnail
2. Turn on the option 'Make Episode Live & Viewable'
3. Scroll down and select in the lower right corner. Now the episode is viewable in the screening room and has a checkmark in the lower right corner of the thumbnail.
An easy way to to Add and Remove the episode from the screening room, you can also select or deselect the checkmark on the video's thumbnail.