Herewith a briefing on all things “television” which is now called streaming video, Live TV, and a bunch of other things, including confusing. — For a friend, I recently took on the task of trying to provide an overview of this new, broadband world of streaming video. She has an older-model television and generally uses it to watch DVDs rented from Netflix. (Yes, Netflix does still maintain their original DVD rental-by-mail service; as of…