Moby Dick 3rd Rock from the Sun : Season 3 Episode 6

When Dick discovers that he has put on a large amount of weight, Nina tells him that it is because he is sad about his breakup with Mary. Dick tries to slim by eating healthily and attending exercise classes, but nothing works and he ends up joining a weight loss group, where he runs into Mary. At home, Sally begins to grow attached to her new tomato plant and names it Jeremy, leading Don to fear the worst when he hears that Sally is spending lots of time with 'him'. Meanwhile, Tommy is worried that August is cheating on him, and sends Harry to investigate.