Plot similarities:

• A British man gets into a car accident and is sentenced to be Andy Griffith’s butler
  • Jerry and George write a TV pilot script premised on a man without car insurance sentenced by a judge to be Jerry’s butler 

• Andy gets bothered by his girlfriend’s overly familiar long-term male visitor
  • Jerry gets bothered by his girlfriend’s overly familiar male roommate

• Andy has trouble with a girlfriend because she shoots better than he does
  • George dumps his girlfriend because she beat him at chess

• Andy mistakenly says something negative about Barney’s relationship with his ex-girlfriend Thelma Lou which later comes back to haunt him when Barney and Thelma Lou make up again
  • Jerry and Elaine mistakenly say something negative about Kramer’s ex-girlfriend which comes back to haunt them after Kramer makes up with her

• Howard Sprague joins the Big Brother program
  • George gets conscripted into the Big Brother program

• Andy’s get-away vacation to the lake is ruined by Warren’s premonitions of disaster
  • George’s vacation plans are ruined by a psychic’s premonition of disaster

• Andy helps Barney who’s tongue-tied around his girlfriend
  • Newman helps Kramer who’s tongue-tied around the woman he likes

• Barney attracts the romantic interest of a female convict
  • George dates a female convict

• Howard Sprague becomes a swinging single guy
  • George declares “The Summer of George!”

• Andy, Opie and Aunt Bee go to Hollywood for three episodes
  • Jerry, George and Kramer go to Hollywood for two episodes

• Howard Sprague abruptly quits Mayberry and lives a Bohemian life on a tropical island
  • Kramer abruptly quits New York and lives a Bohemian life in sunny California

• A visiting movie crew disrupts the normal life in Mayberry
  • A Woody Allen movie being shot down the street from Jerry’s apartment disrupts everyone’s life

• Opie’s inability to dance becomes a major issue
  • Elaine finds out she dances horribly

Character Similarities:

Jerry and Andy:  Single guy surrounded by girlfriends; cool, rational, voice-of-reason protagonist with dysfunctional friends:

George and Barney/Warren:  nervous, manic, uncool, over-excited, prone to crazy schemes (both Costanza and Fife also work in real estate for a while)

Kramer and Gomer/Goober:  tall, thin, lanky, goofy, “not playing with a full deck”

UPDATE: