GSN font here refers to the font used in the logo of GSN, or Game Show Network, which is an American digital cable and satellite television channel dedicated to games shows and reality shows.
The font used for the logo of the TV channel is probably Gotham Black. Designed by Tobias Frere Jones, Gotham is a typeface inspired by the architectural signage seen in the New York City. You can view more details about it on Typography.com.
Download Gotham Font
The Gotham font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.