 Episodes with both kids (from November 1963 on) have not only all three   Flintstones (and Dino) going to/coming home from the movies, but also all   three Rubbles as well. The corresponding end credits have a copyright of   "1965," although episodes which were produced in 1963 and 1964 appeared in   syndication with this set of credits (these episodes originally featured the   "Pebbles version). Virtually all of the syndicated prints (and most copies   broadcast today) feature incorrect end credits (which were always   episode