What Is It About Wanting a New Cold Feet?

Coupling, Married Single Other. Why is this obsession with a new Cold Feet? In the 1990s were they interested in the new All Creatures Great and Small or Terry and June? So why did it seem to change in the 2000s and 2010s? It's not as if it's a particular good show, just popular. Comedy should be about originality, not rehashing old ideas.