This is listed as the last episode of the season (6), but Betty-Jo is pregnant. She had her baby in episode 4. It was originally scheduled to be broadcast October 19, 1968 between episodes 3 and 4 (it's really episode #6.4, while what's listed on IMDb as 6.4 is really 6.5, etc.), but the original broadcast of #6.3 was pre-empted on October 12 and that show moved to the 19th in place of this one. It was eventually played at the end of the season the following March.