Every Saturday morning mystery show that Hanna-Barbera produced between 1967 and 1975 doing a massive crossover that takes all morning long, and still ends with "I would have gotten away with it, too, if it weren't for those darn kids and that dog!"
Of course, each group with a dog or dogs looks around proprietorially at this, smiling at each other.
You know actually that would be all kinds of fun