For the original list of the top 5 Laverne and Shirley episodes, that can be found here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-UG6_Ve2yKMQ.html
My favorite episodes of L&S are a tie: When Shirley discovered Carmine and Laverne had a one time fling and when Laverne dated the fireman who died fighting a fire. One showed a climactic betrayal between friends and one was a sad and tragic love affair that ended unfairly.
Haha my grandma loved this, so did my mom (I think they used to watch it when it came on together and my mom was a teenager) and I gotta admit, it's pretty funny stuff.