I got a message in Logos that they were under $10. I was looking for something to go with my group's bible study. I can always use the Bible Project as an intro.
The courses in the series you are referring to have been adapted from longer Mobile Ed courses. Lynn Cohick's videos were taken from her NT101 course. There are some sample videos of that course on the NT101 product page. The specific samples may not be in the Bible Survey Video Series course you are looking at, but they should give you a good feel for the style of the videos: https://www.logos.com/product/41720/mobile-ed-nt101-introducing-new-testament-its-structure-and-story.