I will have to disagree with you here. The Last Show was brilliant. (You forgot to mention this one). There were some serious CLUNKERS here: I ABSOLUTELY HATED Lou Dates Mary. I know, I know a lot of the fans LOVE this one but I am the odd person out. I also hated Mary's Insomnia. I just did not think it was funny and I don;t like when sit-coms tackle "issues" much. That's just me. I did like seeing Mary's large bathroom however. Other clunkers: Mary's Big Party (greatest hits episode) Mary's Three Husbands (liked it way back when-now , not so much), Mary Dates Murray's Father, Lou's Army Reunion, Mary Gets a Lawyer, My Son the Genius, Mary the Writer, What's Wrong with Swimming. I used to LOVE Sue Ann's Sister but time has not been kind to it and it seems contrived. Seems like Ted's Temptation is a knock off of I Love A Piano with Murray in the same role.
Bright spots this last season: Sue Ann Gets the Ax, The Ted and Georgette Show, Murray Can't Loose, Mary Midwife and Murray Ghosts for Ted.