No it isn't.
A smart show is one that has season long storylines not stand alone ones. CSI might be smart science wise, but not storyline wise. The same goes for Law & Order, Without a Trace and those shows. Actually, I've never watched WaT, but I am guessing it is the same as the others.
VM is in depth with season long storylines, it could fill 5 seasons. That is smart TV.