- Mike is able to support a stay-at-home wife, six kids, and a full-time housekeeper on a staff architect's salary. He also has a huge house, can afford vacations, and the kids have their own bikes. Since Mike was a widower, it's possible he got money from his late wife's life insurance policy. The house he lives in in the pilot is also different so it's possible he had extra money from selling it, and Carol sold her old house as well; she could also have money from her late husband as well.
- A couple seasons prior to Greg moving into the attic, Mike says that he'd have to be two feet tall to live in there. It's possible it was renovated in that time span.
Fridge / The Brady Bunch