TV Tiempo is the weather forecast program of Televisión Nacional de Chile (TVN). It debuted in 1970, so it's TVN's longest-running program out of the channel's entire catalog. It has 2 editions: one after 24 Horas Central and another before signing-off every day. The forecasts are also published into YouTube.
While the program was still referred to as "TV Tiempo" by the channel's voice, on-screen its name appeared as El Tiempo. The logo only appeared at sponsorship IDs between the usage of this logo, as TVN didn't use any intro/outro for TV Tiempo back then.
Main logo, used on the intro/outro
Secondary logo, used on sponsorship IDs and thought as predecessor to the main logo
During this era, TV Tiempo didn't have a consistent logo. Instead, they used three:
The main one consisted on a regular wind detector (of those used on house roofs), and the program's name written in Helvetica.
The logo used on sponsorship IDs just before and after the main roof consisted on a sun with a magenta-colored text with the program's name written in Helvetica over it. It is thought to be the predecessor to the "wind detector" logo.
Another logo was used exclusively on the program's studio.
In January 1987, the 3 old logos were retired in favor of one consistent logo. It consisted on two horizontal lines; above the one on the top, the word "TV"; between both lines, the word "TIEMPO" with a sun replacing the "O".
This logo had an extrusion-like 3D effect, similar to those in other TVN programs back then. Used until April 1989.
The design is the same as the logo from TV Chile, TVN's international channel, except that is cyan and has the word "TIEMPO".