I've seen the special a few times now, before i bought the volume one dvds i thought this was origonal but it weren't, lol. This was very great and revealing, quite funny to. I espicially like Jerry doing his routine at the beggining, thus giving an intro to the show. I acutally believe that this doco, was probably very hard-worked on. It also covered the sitcoms that followed the show nicely, as well as giving most cast members, directors and both creators large parts in it.
Also good, was how it revealed ratings in it and also how the whole series and pilot were concieved and developed were both nicely put togethor.
A very nice special to reveal how the series evovled from start to finish.