Question: Bruce Gray's work was featured in what sitcom that ran for nine seasons on NBC?

Context paragraphs:
Traders (season 1): This is a list of episodes for "Traders", a Canadian television drama series, which was broadcast on Global Television Network from 1996 to 2000.  The show was set in a Bay Street investment bank, Gardner Ross.  Bruce Gray and Sonja Smits starred as the firm's senior partners, Adam Cunningham and Sally Ross.  The cast also included Patrick McKenna, David Cubitt, Rick Roberts, Chris Leavins, Gabriel Hogan, David Hewlett, Peter Stebbings and Alex Carter.

Traders (season 2): This is a list of episodes for Traders, a Canadian television drama series, which was broadcast on Global Television Network from 1996 to 2000.  The show was set in a Bay Street investment bank, Gardner Ross.  Bruce Gray and Sonja Smits starred as the firm's senior partners, Adam Cunningham and Sally Ross.  The cast also included Patrick McKenna, David Cubitt, Rick Roberts, Chris Leavins, Gabriel Hogan, David Hewlett, Peter Stebbings and Alex Carter.

Traders (season 3): This is a list of episodes for Traders, a Canadian television drama series, which was broadcast on Global Television Network from 1996 to 2000.  The show was set in a Bay Street investment bank, Gardner Ross.  Bruce Gray and Sonja Smits starred as the firm's senior partners, Adam Cunningham and Sally Ross.  The cast also included Patrick McKenna, David Cubitt, Rick Roberts, Chris Leavins, Gabriel Hogan, David Hewlett, Peter Stebbings and Alex Carter.

Bruce Gray (sculptor): Bruce Gray was (born 1956 Orange, New Jersey) is an artist residing in Los Angeles.  His work includes kinetic art such as rolling ball machines, mobiles, stabiles, and suspended magnetic sculptures.  He also creates found objects sculptures such as a lifesize motorcycle sculpture constructed from train parts, and giant objects such as a large aluminum wedge of Swiss cheese and giant high heel shoes.  Gray's work has been displayed at many museums, art galleries, and is part of over 1200 corporate and private art collections.  His work has appeared in numerous films and television shows including "Charmed", "Austin Powers", "Meet the Fockers", "Batman Forever", "Sleeping with the Enemy", "Six Feet Under", "Seinfeld", "Star Trek", "Friends", "Frasier", "Roseanne", "Murphy Brown", "How I Met Your Mother", and "NYPD Blue".

Traders (season 5): This is a list of episodes for Traders a Canadian television drama series, which was broadcast on Global Television Network from 1996 to 2000.  The show was set in a Bay Street investment bank, Gardner Ross.  Bruce Gray and Sonja Smits starred as the firm's senior partners, Adam Cunningham and Sally Ross.  The cast also included Patrick McKenna, David Cubitt, Rick Roberts, Chris Leavins, Gabriel Hogan, David Hewlett, Peter Stebbings and Alex Carter.

High Hopes (Canadian TV series): High Hopes was a 1978 Canadian television soap opera that was shown on both Canadian and United States television, starring performers Bruce Gray and Dorothy Malone.

Traders (season 4): This is a list of episodes for Traders, a Canadian television drama series, which was broadcast on Global Television Network from 1996 to 2000.  The show was set in a Bay Street investment bank, Gardner Ross.  Bruce Gray and Sonja Smits starred as the firm's senior partners, Adam Cunningham and Sally Ross.  The cast also included Patrick McKenna, David Cubitt, Rick Roberts, Chris Leavins, Gabriel Hogan, David Hewlett, Peter Stebbings and Alex Carter.

Bruce Gray: Bruce Gray (born September 7, 1936) is a Puerto Rican-born Canadian actor.

The Vessel (The Outer Limits): "The Vessel" is an episode of "The Outer Limits" television show directed by Jimmy Kaufman, starring Jere Burns, Bruce Gray, and Tom Butler while featuring Jay Brazeau, Zachary Ansley, Marie Stillin, and Chilton Crane.  The episode's executive producer is Michael Sloan, co-executive producer Brent Karl Clackson.  It first aired during the seventh season.

Seinfeld: Seinfeld is an American sitcom that ran for nine seasons on NBC, from 1989 to 1998.  It was created by Larry David and Jerry Seinfeld, the latter starring as a fictionalized version of himself.  Set predominantly in an apartment building in Manhattan's Upper West Side in New York City, the show features a handful of Jerry's friends and acquaintances, particularly best friend George Costanza (Jason Alexander), former girlfriend Elaine Benes (Julia Louis-Dreyfus), and neighbor across the hall Cosmo Kramer (Michael Richards).  It is often described as being "a show about nothing", as many of its episodes are about the minutiae of daily life.

Supporting paragraphs: Bruce Gray (sculptor) Seinfeld
Answer: Seinfeld