He was the founder and President of Triumph Publications, Inc. of New York City, an extensive and progressive commercial sound music recording library with affiliation to BMI.
He scored numerous television and cartoon music, including such classic favorites as Quick Draw McGraw, Father Knows Best and The Cisco Kid.
Shaindlin also directed a number of significant documentaries, ranging in scope from travel themes to education, health and Hollywood.
He collaborated with famed entertainer Gypsy Rose Lee late in her career to produce a musical review in which she intended to star in New York at the El Morocco nightclub, which in the end did not materialize, reportedly due to her health issues.
The songs "I'm Tickled Pink" and "Let's Go Sunning" are featured in-game "Galaxy News Radio" station in the 2008 video game Fallout 3.
[3][better source needed] Also, the opening and closing theme of the TV series Adventures of Superman is accredited to Leon Klatzkin.
"Let's Go Sunning" is also used in the 2019 TV Show Doom Patrol, where it is heard coming from the room of Rita Farr after she opens the door.