The Kummeli TV show was primarily composed of skits with insane characters, but would also feature musical guests as the core crew of the team were actually musicians rather than professional actors (with the exception of Hela, who, ironically, ended up behind the camera for the early episodes of the show).
Kummeli was re-launched at the turn of the millennium, with Keskinen returning to host the show, now with a live studio audience.
Kummeli comes from a Finnish word for a sea marker (basically, a pile of stones, a cairn) which indicates territorial waters.
Though the Kummeli crew do not deny the potential symbolism the reason for picking the name (which was suggested by Keskinen's wife), it was probably chosen just because it sounds humorous to Finns.
The literal translation of "älykääpiöt" would be "brain-midgets", which is a term used by and while talking with children, meaning a person who behaves in a way that makes them stupider than they are Some characters were also created just to deliver two or more words as short skits.
Later this was replaced by another pair of men called Kippe and Mosse (probably meant to be nicknames) one asking the other "Kippe/Mosse is everything OK" and the other replying "OK" followed by them saying "OK" all over again until they usually move out of the picture in a car, on a bicycle or with another vehicle.
The titular Sweepers are a two-man cleaning company (Silvennoinen and Kahilainen) modelled after the stereotypical Frankenstein's monster and Igor characters.