When the Indian chief tells his people to stop dancing around the totem pole (in the wild west episode) he says: "Ada Haug!" and they all stop. Ada Haug was the woman in charge of the Children's and Youth department at NRK (Norwegian Broadcasting Corporation) when the series was made.
The places that the main characters visit with their time machine are (in order): Norway during the Viking age (the year 1030), 17th century France (spoofing "The Three Musketeers"), the 18th century (spoofing "Robinson Crusoe"), ancient Egypt (where they encounter a pharaoh and a mummy), the wild west in 19th century America, 1920's England (where they spend the night in a haunted mansion), 12th century England (spoofing the legend of Robin Hood), the 1001 Nights universe (encountering a genie in a bottle and Ali Baba) and finally Norway during World War 2, before they are beamed aboard an alien spaceship and transported to a distant planet in another galaxy! All this was managed on an impressively modest budget and the crew rarely left the vicinities of Oslo, Norway when shooting it.
In the episode where the time machine ends up in World War 2, the brothers encounter the Norwegian resistance group Milorg, however here they are called Milord - with a 'd'. Later, when the resistance members are marching to their secret headquarters they are humming the Edith Piaf-classic "Mon Dieu" (Mi Lord).
Tom Mathisen, the narrator throughout the story also appears as the leader of the bandits (under a big hat and a large fake moustache) in the wild west episode.
When Roms makes his appearance as the gunslinger "Roms the Kid Dal" (in the wild west episode) the music playing in the background is from Sergio Leone's Once Upon a Time in the West (1968) (Once Upon a Time in the West).