User blog comment:Darthbane2017/Continuity Between Episodes?/@comment-24200891-20170526201026

Continuities:

Ronalda


 * In Heavy Meddle Lincoln learns Ronalda has crush on him.


 * In Save the Date Lincoln learns Ronalda and Roberto are siblings.


 * In Shell Shock Lincoln knows they are siblings and visits them not surprised

Clyde's cat


 * In Baby Steps Clyde gets a new cat


 * In Cheater by the Dozen the cat appears again

Clothes


 * In Sleuth or Consequences Lincoln wears red underwear from Undie Pressure


 * In Girl Guru Lily has orange polo from Changing the Baby

I am also sure Lucy meeting Rocky in Back in Black also has some meaning.