You can view the number of on-demand viewers for a given broadcast by selecting "View Statistics" or by visiting https://mystreamspot.com/usage/.
Under StreamSpot Usage Summary, you will see the time frame in which statistics are (being) displayed. You can go back in 2-week increments to see more.
Scroll to the bottom of the page under "On-Demand Archives" to view how many viewers a given archive in the 2-week span has had. Hover over a broadcast for the exact number.
To learn more about Basic Usage Reports in StreamSpot, see the link to the other Knowledgebase article below: