I haven’t done this in a while, but today’s “comic strip” is a mash-up of panels from daily strips that will appear next week, a preview of cartoons beginning March 6. I know: it makes no sense really, but don’t you hate it when you sit through a three-minute movie preview and feel as if you know exactly what’s going to happen in the two-hour version? And when did “previews” become “trailers?” Have you ever sat in a theater and been invited to view “Trailers of Coming Attractions?” Somehow, I blame Turner Classic Movies for this. I believe TCM introduced me to the Hollywood term “trailer.” Now, the film and video landscape is littered with trailers.