A household is you and your immediate family (if you have one), like your spouse and kids, who are living with you under the same roof.
A household is not a fix location, but the actual locations of these family members.
Your kid browsing the EPG on a tablet while sitting on the school bus is also your household.
Your spouse on a business trip in Paris, sitting in a hotel room is also your household.
Your weekend house in the Swiss Alps is also your household.
Your grandma living in Oregon is not your household.