Now, I am able to copy segments from science programs while watching them on TV. The capture card in my PC is directly connected to an output on the satellite receiver. After getting a number of clips, I have copied to various DVDs for quick, in-class listening comprehension exercises. Now, with our robust computer network at BCIT, I can easily post streaming video segments to the class storage. These could be made available in the Institute's labs or even from a home computer.
There are many educationally sound things I can do. What I'm unsure of is the legality of many of those actions.