"Leave It To Beaver": 6 seasons, 234 episodes

For those of us of a certain age, this article ("Golly, Beav, We're Historic" in today's Arts & Lesiure section of The New York Times) may temporarily erase the past 50 years -- as it did here. 

And think about it:  39 episodes in each of its 6 seasons.  Quite the workload.

Leave It To Beaver

Excerpt:  That is what hits you first when you sit down with a box of “Beaver”: television comedy was a much slower animal back then. You have to detox mentally to watch these shows, to lay aside your caffeine and BlackBerry addictions and be prepared to wait for your rewards. That bathtub scene takes almost three and a half minutes to unspool. In that time Hannah Montana could have traded six insults with her father, tripped over a couch, lost her wig, dumped two boyfriends and had a crisis involving shoes.