This is how the effects are made to the SVT program on Beowulf

- This is the most fun thing I've done in 20 years, says Tobba Johansson graphic designer at SVT.

An example is the Chroma key technology, which is an old technology, but which can now be easily executed in the home computer. You film an object against a blue cloth and then replace the background in the computer. The programs required to do this are no longer as advanced and expensive, he says.

- The funny thing is seeing these Chroma key stuff come to life. It goes fast and it is also possible with a modest SVT budget. We do not have the same economy at all as Hollywood productions, says Tobba Johansson.

On the other hand, getting the animated monster in the clip to move is something more complicated, he adds.