[1] In 2003 joined Rabbit Films and started working on the English-language version of the Finnish hit series Extreme Duudsonit.

[1] The name was eventually changed to The Dudesons and Tiensuu was a co-creator, writer, segment-director and editor on the show.

The series was launched in 2006 and it quickly became the most internationally successful Finnish TV-series of all time, airing in over 150 countries and spawning four seasons.

In 2006 Tiensuu also worked as a co-creator, writer and a director of cinematography and editing in The Dudesons Movie, which was released theatrically in Finland.

In 2010 Tiensuu worked as a co-creator, producer, writer and a segment director in The Dudesons in America, an MTV USA series which was budgeted at 6 million dollars.