The evolution of the TV situation comedy formula includes morality plays, political commentary, first-world problems, and train wreck relationships. Home Improvement found a brilliant niche, where in each episode quirky but well-meaning characters could gain a bit of insight into life's challenges, and so could the audience. Excellent, writing, casting, and direction make it all work. Having Disney as the studio gives it continuity and polish. You can watch these episodes again and again, without feeling they are tired or out of date.