TES-TV

Background
TES-TV was the first television channel in Finland. It was launched when the Finnish Foundation for Technology Promotion ("Tekniikan edistämissäätiö" in Finnish, abbreviated to "TES") performed the first wireless TV transmission in Finland on April 20, 1955, with the first public cable broadcasting taking place on May 24th, and regular broadcasting began on March 1956. It was then renamed Tesvisio in May 1959.

ID (March 21, 1956-1959)
Visuals: This ID mainly consists of "TES-TV" against an abstract "oscillating" wireframe pattern on a black background.

Technique: Unknown, though probably cel animation.

Audio: Unknown.

Availability: No on-screen footage of this ident exists, and there only remains an image, which can be found on Logopedia.