"To record the lectures" means to make a video or audio recording of the classes or presentations for future reference or to listen/watch them again at a later time. Full definition
Instead of using precious classroom time for lectures, a flipped classroom asks students to watch recorded lectures with instructors ahead of time. (fortune.com)
Most of these provide information in the form of recorded lectures and are not designed to individually work with you as a couple. (poweroftwomarriage.com)
I am doing a series of 40 recorded lectures in each.... (slaw.ca)