"Ghost Story aka Circle of Fear" is released as a 6 dvd-r MOD set from Sony, sold thru Amazon and Warner Archive. 23 one-hour episodes. Suggested retail is $56 on Amazon, but is currently priced on Warner site like a single disc - just $18. Probably a mistake in the listing, but if you dont mind exploiting it, order now before they correct it.
http://www.wbshop.com/search.do?query=ghost+story