Spektrum (first era)
Spektrum Fuei launched in 2001, airing knowledge programs.
In 2006, all of ChelloMedia Fuei's networks were renamed under the Zone arm, because of this, Spektrum became Zone Spektrum.
In 2009, All Zone Fuei channels were changed into CBS channels, causing Zone Spektrum to become CBS Spektrum.
Originally, CBS Know was going to be renamed to CBS Know, but however, alongside all of it's sister channels, they would rename into differently named channels.
Spektrum (second era)
In 2018, CBS Spektrum reverted back to just Spektrum.