ZDTV[]
1998-2001[]
TechTV (original)[]
2001-2004[]
G4 (first era)[]
2002-2004[]
G4TechTV[]
2004-2006[]
G4 (second era)[]
2006-2008[]
2008-2014[]
2014-2019[]
2020-2021[]
WGN America[]
2021-2022[]
Nexstar Media Group acquired G4 which renames it WGN America on July 1, 2021
WGN America goes off the air August 31, 2022 at midnight