The good side of resurrecting old comedy routines is that it may appeal to a younger and new audience who in return will look at the original act.
Otherwise just let sleeping dogs lie. If their routines and films have faded into the past then they have done so because they are not relevant anymore or not understood.
However the comedy of the Marx bros and The Three Stooges is fairly timeless and can be appreciated by almost anyone of any age.
Over the pond, we have some great comedy acts however short of Monty Python it probably doesn't have the
