Buzzco Associates, Inc. is an animation studio that was founded in 1968 (as Perpetual Motion Pictures) by Buzz Potamkin with Candy Kugel and Vincent Cafarelli as co-creative directors and Marilyn Kraemer as executive producer. Early work of the studio included the "I Want My MTV" campaign, and the "Top of the Hour" network ID for MTV. The spots mixed live action, rock stars, music and animation. Buzzco continued with production of commercials, titles, insert programming, sales films and segments for such clients as Nickelodeon, Sesame Workshop, MTV, HBO Family and ABC, as well as for educational shows such as Sesame Street and Square One Television.