What happened???? Last two episodes really screwed the pooch!

My guess is that they knew they wouldn't be coming back for a 7th season, so the network used the remaining shows as pilots for potential sitcoms since there was no point in developing the Green Acres storylines/characters any further. I'm going to disagree with you about the "Hawaiian Honeymoon" episode. I think it could have been a cute show if it had been given a chance. Don Porter was a well established TV veteran (Ann Southern Show, Gidget) and the supporting cast was very good. Apparently another network (NBC) thought the father/daughter in Hawaii premise was a good one. They launched "The Little People" with Brian Keith and Shelley Fabares a year later with a similar premise; although they were doctors rather than hotel managers.

"The Ex-Secretary" on the other hand, was a bland sitcom idea, and the overbearing boss/goofy secretary idea had already been done very thoroughly by Lucille Ball in "The Lucy Show". Interesting to see Emmeline Henry from "I Dream Of Jeannie" though.