Part two? Has to be Roseanne. Other than having one of the sexiest opening theme songs of all time, Roseanne was obviously in the top three of sitcoms with the best Halloween episodes. These were the episodes that got me into the show in general and they're still great to this day. (The worst one is probably season nine, stay away from nine!) But all the others? Gold.
You can watch all the Halloween episodes on YouTube - the links are conveniently located for you below.
Season Two - BOO!
Season Three - Trick Or Treat
Season Four - Trick Me Up, Trick Me Down
Season Five - Halloween IV
Season Six - Halloween V
Season Seven - Skeleton in the Closet
Season Eight - Halloween: the Final Chapter
Season Nine - Satan, Darling
Or if you love these episodes a lot, you should really buy this DVD I just got for $5 that contains all of the Halloween episodes.
If you're interested in reading Part One of this series, please go on over here.