Because of the presence of McAuliffe, the media coverage of the launch was extensive. While CNN did a live broadcast, which became the most memorable footage of the event, there were other cameras that day. None of the other views of the explosion were publicly available until 2010, when they were declassified.
In total, there are 7 known videos of the explosion. Some came from amateur civilians, while one was a professional filmmaker.
You can see one here.