Honza has been active in the media industry for over 25 years. He started as an editor and screenwriter, later worked as a dramaturge, and ultimately advanced to managerial and production roles. He has experience with all major media houses, including Czech Television (ČT), TV Nova, TV Prima, and CNC. He spent the longest time at ČT, where he contributed to the creation of numerous successful formats that still achieve high viewership, such as Všechnopárty. One of his biggest passions is the show StarDance (the Czech version of Dancing with the Stars), for which he was responsible for the content, leading to the production of 10 seasons and a total of 89 episodes under his direction. He also considers five years of work on Eurovision a significant success, where he helped raise the profiles of ČT and the Czech Republic internationally as a creative producer, reaching the finals three times.
As the manager of the Entertainment, Theatre, and Music Production Center, he oversaw hundreds of live broadcasts, entertainment shows, game shows, documentaries, dramas, talk shows, and more, including Anděl Music Awards, Help the Kids, 3+1 with M. Donutil, Trapas, Secrets of the Family, New Year’s Eve shows, and others. He is also the author or co-author of many TV shows, such as Dance Fun with Honza Onder (approximately 300 episodes for ČT Déčko), Ah, That Heavenly Love (a musical comedy tribute to legend E. Pilarová), State of Emergency (educational public affairs), Battle of the Series (which discovered the now-iconic series Circus Bukowski), among others.
Outside of television, he is the co-author of the concept and libretto for the musical Christmas Miracle, or Promises Should Be Kept at Christmas, which he wrote with Janek Ledecký and continues to fill theaters every December. He has created the concept and scripts for various commercials, marketing, and charitable campaigns. Honza also works as an instructor for online courses and media and communication training. His shows have won numerous awards, including the TýTý Awards for Best Entertainment Shows of the Year.