As a type of game, let's try to post a single word or name that definitely identifies a particular TAGS episode. The word or name needs to refer to only one episode, so if an actor appeared more than once, his/her name would not qualify. Examples:

Pickles -- Those "kerosene cucumbers" Aunt Bee made really created problems for Andy and Barney

Bixby -- Bill Bixby appeared as a young man newly jailed in Mayberry

Give it a try, and have fun! :)

Motorcycle
McBeevee
Umpire
Remschaw
Parkers
Governor
Goat
Gold

Manicurist -- Floyd had a lovely one on duty briefly
Cave-in -- Barney organized a rescue for Andy & Helen