Johnny Test

The remainder of the first season was produced in-house by Warner Bros.

The first season was produced in widescreen, but cropped to a 4x3 aspect ratio when they aired on television, and can still be seen on other digital providers like Netflix.

The original version of the show's theme song and all of its underscores were both written, composed, and conducted by Kevin Manthei, with creator Scott Fellows having written and provided the lyrics to the theme song.

Voice recording was provided by Voicebox Productions, with voice direction by Terry Klassen.

The merger of UPN and The WB into The CW Television Network resulted in significant budget cuts for the show, placing it on hiatus.

Cookie Jar Entertainment, another Canada-based entertainment company, under their then-new action-adventure brand Coliseum, who previously had production assistance in the first season, decided to take control of the series' production.