In the early 1960s, they created Harvey Funnies, the original entertainment company to produce The New Casper Cartoon Show.

The sole evidence which Harvey has produced on this issue are excerpts from magazine articles which suggest a general association between the "Ghostbusters" logo and "Casper" comics.

[4] With this, the company became a subsidiary of Montgomery's HMH Communications (based in Santa Monica, California) and was renamed Harvey Comics Entertainment.

[8] During this period, Montgomery began to re-syndicate the existing animated library as well as reprint older comic book titles.

Through Claster Television, Casper & Friends was syndicated to local TV stations for three years between 1990-1994, while the "Harvey Classics" comic books began being published around the same time.

[9] In 1991, the company licensed out Richie Rich and Casper to Warner Bros. and Universal Pictures respectively to create films based on the characters.

In February 1997, Harvey re-acquired full merchandising and licensing rights to their properties including Casper and Richie Rich from Universal Pictures, although they would continue to work with the company on new animated projects.

[21] On July 27, Harvey announced that through a business plan with the Global Media Management Group, the company would produce a slate of twelve direct-to-video feature films and three television shows.

[25][26] In October, the company entered into a partnership with Spümcø to produce web-exclusive content featuring an assortment of Harvey characters.

[28] The company attended its first MIPCOM in November 1999 after entering the self-distribution market, announcing the work of a new CGI-animated Casper Christmas movie with Mainframe Entertainment and a live-action Baby Huey series aimed towards a pre-school audience.

[33] The company engaged in third-party distribution in April 2000 by becoming the international sales representative and distributor of animation studio Film Roman.

[38] On August 17, the company purchased North American distribution rights to the movie A Monkey's Tale from Pearson Television International.

[40] At the end of the month, the newly-formed Classic Media announced that they would purchase a 60% stake in Harvey Entertainment for a cash-and-stock deal valued at $30 million.