Carefully consider the ways in which video or other media that you share with your class are aligned with your learning objectives.
consider your own access to technology: make sure that you are familiar with all of the technology that you use and that media technology in your classroom is functioning correctly before the class.
PowerPoint presentations can be useful in structuring a lesson, but your slides should not match your lecture word-for-word, such that you are simply reading from the slides.
Consider giving them a short assignment to be filled out as they are watching it, for example, to structure their interaction with the media and to assess their learning at the end of it.