I personally find the bloopers "charming," but that's not the point. DS was the most ambitious program of its time, from its acting, production, and technical aspects. The action was shot live-on-tape, meaning that everything we see was essentially live. Actors were learning a script a day, shooting it once, then moving on to the next one. Special effects were attempted using technology that was cutting edge then, primitive now.
Unlike most contemporary shows, which have the luxury of being shot and reshot to perfection (and often sterility), DS is THEATER. I can enjoy the show on many levels -- following the imaginative storylines, watching how the actors handle the unexpected (often a real test of acting), studying how a special effect was attempted, listening to the musical score, and then just enjoying the bloopers (or Kathy Cody or Donna McKechnie whining, not necessarily in that order).
Given its time and relatively limited budget, DS was a huge accomplishment. The only way the viewer -- old or new -- can appreciate what DS was all about is to see the show -- brilliance, warts, and all.
Ben