I'll always love this show too! There was no one funnier than Barney Fife. Barney and Andy were a great comedy team. Opie was a sweet kid and funny too.
I also laugh at the same episodes over and over. Sometimes I just like to see characters with nice, old fashioned values. The characters were decent people , loved their town and even went to church.
Andy was a great friend to Barney and never deliberately embarrassed him when he royally screwed up police procedure. Barney was hilarious when he, single and childless, gave Andy his "expert" advice on women, marriage and childrearing.