Canal 21 is the seventh-oldest television channel of El Salvador, founded on March 1, 1993 by Óscar Antonio Safie. The channel is owned by Grupo Megavisión with two sister channels.
The channel was inspired to the Chilean Megavisión using three diagonal stripes of red, green and blue in the rounded rectangle as a television screen. The word Canal was on the left to three color bars. and the number 21 was on the blue stripe. Sometimes, a number was yellow with a shadow but no "Canal" word.
By 1998 for one decade, the logo was presented using a broken circle, simulating a painting with three colors, as the number 21.
In 2008, Canal 21 launched a new logo retiring the three colors from the two previous logos, and leaving with a blue number 21, a thin light blue crescent with a red circle placed on it.