If you are looking for shows on TV from the seventies, this is one of them! My mom told me that everybody used to watch it, and that it had about 10 seasons. The concept of the show is one single middle aged man with three sons who marries a single middle aged woman with three daughters! The whole series is about what they do to come together as a family, as the Brady Bunch. It's a bit corny, but you'll love it :)
(And don't forget Alice their housekeeper! She's a main character too.)
(And don't forget Alice their housekeeper! She's a main character too.)