Bits and Bytes is a classic, and still foundational, Canadian television series about microcomputers and the key concepts behind them. It was produced by TVOntario in 1983, and stars Luba Goy as the instructor, and Billy Van as the student. For more information, see http://en.wikipedia.org/wiki/Bits_and_bytes.
As this series is no longer available for sale, it has been made available here for posterity. (The official, but incomplete, archive is at at http://archive.tvo.org/program/120129/Bits%20and%20Bytes)