I think the BBC should do specials on all the families from the past 20 years.
The Fowlers/Beales/Flahertys, Watts, Cottons, Osmans, Ferreiras, Moons, Jacksons/Brannings, Butchers, Evans, Truemans, Mitchells, Slaters, di Marcos, Taverniers, Bates, Millers, Raymonds, Kapoors, Carpenters, Healys, Allens & Owens
That would fill 22 episodes easily.