Tjaša Slokar Kos is a professional journalist. At Ljubljana University she graduated at the Faculty of Social Sciences (Master Study Programme of Journalism).  Since 1995 she is working at the biggest Slovenian commercial TV station POP TV.  For eight years she had been active as a journalist. Her specialties were internal politics and coverage of the government and parliament. Between 2003 and 2014 she worked as the editor of daily news programs. She also edited all pre-election debates and programs ever organised at POP TV. At "POP Academy", which trains young journalists, she is lecturing the basics of TV journalism.  In November 2014, she became the Editor-in-Chief and Director of News and Sports departments on POP TV. The News Department is producing the most viewed daily news program in Slovenia, »24 Hours«, and the most visited news website »«.

 POP TV Sports Department provides 9 to 10 minutes of sports content every day for the main news show “24 Hours”. The main aspect of the Department's operation are sports projects, related to the television rights acquired, such as the  UEFA Champions League, MotoGP, EuroBasket, EuroVolley, ...In the last six years, the most resounding and successful projects have certainly been Eurobasket 2017 and Eurovolley 2019. With broadcasting the final match of Eurobasket 2017, POP TV has achieved a record viewership of all television contents of all times in Slovenia. With the basketball project in 2017 the Sports Department has created/produced over 230 hours of program  and with the Eurovolley project in 2019 about 90 hours of program. With the UEFA Champions League project running from 2015/16 until today, the Sports Department is producing an average of 102 hours of program per season with very high ratings. Broadcasting the MotoGP content with an average of 115 hours of program per season in the last five years is achieving the second highest viewership in the world, right after Spain.