CCTV footage, hmm? I'm reminded of this introduction scene from LB2. First two screenshots are unaltered, third has a little camera overlay that I whipped up for demonstrative purposes.
KQ6's intro is dynamically picked depending on what the Platform kernel call says it's running on. If it's Windows, it plays the entire introduction cartoon as a single AVI file. If it's DOS, it plays those parts where there's little animation with views on pictures, and the rest as a series of SEQ clips, which are not entirely unlike Autodesk Animator FLIC files. So practically speaking it loads the picture with the decorative letterbox border, draws the "once upon a time" as regular text, all that, and then during the conversation between Alexander and Valanice every time only Alex's mouth moves and/or the lights flicker in the background, it's views. All the sounds and music in the cartoon are regular SCI sounds too. The SEQs on the other hand are for things like Valanice approaching, Alexander shifting, Valanice turning back, dramatic pans around the room, and much of the ship scene.