GTK Duplicating Co.

List of Customers

 * GoodTimes Entertainment
 * Kids Klassics
 * GTK Home Video
 * Unlimited Energy
 * Sofa Entertainment (2000-2005)
 * HGV Video Productions (Canada) (1989-1998)
 * Anchor Bay Entertainment (Canada) (1995-1998)
 * Video Treasures (Canada) (1989-1998)
 * Burbank Video (Canada) (1989-1995)
 * Strand Home Video (Canada) (1994)
 * Teal Entertainment (Canada) (1994)
 * MNTex Entertainment (Canada) (1992-1998)
 * Starmaker Entertainment (Canada) (1994-1998)
 * Avon Video Enterprises (1984-1990) (mostly tapes distributed in partnership with GoodTimes Home Video)

How to Tell

 * Most tapes duplicated by GTK Duplicating Co. were duplicated on cassettes manufactured in either Hong Kong or Taiwan, and had the audio track duplicated in linear only.
 * Post-1986 tapes have a black screen test pattern with the 1000 Hz tone at the end.
 * Pre-1998 tapes have the record tab intact, while post-1998 tapes omitted it.
 * Certain 1997-2005 tapes were duplicated on cassettes manufactured in Korea.