Two of the all-time cartoon classics It's the Great Pumpkin, Charlie Brown (1966) and A Charlie Brown Christmas (a Peabody and Emmy winner from 1965) highlight this three-disc, six-episode set. Although the DVDs contain no extras (good grief!) and could have been combined on a single disc (drat!), the collection looks and sounds wonderful on DVD. The content is the same on the VHS and DVD sets,…