Grab a sofa, park yourself, watch your favorite TV show and get some exercise done with the Sofa Bound workout. As a matter of fact there should be no TV show you should watch without doing the Sofa Bound workout. It's a Level II workout which means you can integrate it into your day to day TV-watching without any difficulty. You'd be surprised at the difference this makes to your overall fitness level.
Extra Credit: Don't drop your arms from move #1 to move #2.