Is a firewall on my end possibly preventing me from viewing the videos?

The Flash videos on this website require your network administrator to have enabled TCP port 1935 for the Real Time Messaging Protocol (RTMP). This is the port and protocol used by the Flash Media Servers which stream the videos. A network administrator may have knowingly disabled port 1935 on your network due to bandwidth concerns since many users viewing streaming video concurrently could create a bottleneck if not carefully managed. If this is the case, then you would be unable to view the streaming video clips from this website, and you will need to work with your network administrator to enable access on your network's firewall.

Likely, you would have no trouble viewing videos from a home computer. If this is the case, then you can pretty well know that it's due to network settings at your facility, in which case you will need to speak with your network department to gain access.