This is when David Cassidy was soo Hot. That song he sang in jail was the first recorded by the origional singers on one of the first episodes (Before they decided to let David sing.(From then on David became The Partridge family). Smart move. Without David that show woudn't have lasted through one season.
This was a classic episode. One of the funniest. Especially because of the two main prisoners. One who wrote the songs and one who didn't. Speaking of, Barry is great but for trivia buffs; David did the origional version of "I write the songs". Barys was more orchestrated,but David sang it with a lot of heart.