After her advertising debut, in March 1985 she was hired by Universidad de Chile Televisión (Channel 11, now Chilevisión), where she had her television premiere on the program Extra-mujeres, on which she had a youth segment.

[2] During those years, she was a participant in the campaign for the 1988 plebiscite, supporting the "Yes" option that proposed to keep General Augusto Pinochet in power until 1997, appearing in the electoral slot [es] chapter corresponding to 26 September.

These two programs did not achieve high ratings, and Katherine Salosny disappeared from television until 1998, when she returned on Canal 2 Rock & Pop [es] to make one of the first Chilean docu-reality shows, Taxi.

In 2007, she returned to the media as a panelist on TVN's Buenos Días a Todos and, due to her favorable reception, she was hired to present the program Pasiones [es] in February 2008, during Bárbara Rebolledo's vacation.

Later that year, she hosted the reality show Pelotón before the departure of Karen Doggenweiler, but this lasted only a few days since Tonka Tomicic left Buenos Días a Todo to go to Canal 13.

[11] Salosny is a board member of the Fundación para la Confianza (Foundation for Trust) which advocates on behalf of victims of sexual abuse, including those involved in the Karadima case.