Infinity Limited is an Australian science education television series produced by the ABC in Melbourne between 1982 and 1984.
The show initially starred Kim Trengove and Stefan Dennis as Kris (Kristal) and Rick who run a small business called Infinity Ltd. Dennis left the show after 20 episodes in late 1983 and was replaced by Mark Little as Rosco for the final 17 episodes.
Their office was located above the basement/office of Vortex Ventures, a company who makes it their business to try and steal Infinity Ltd's customers, usually without success.
Despite this, Kris and Rick are good friends, maybe even lovers, but being a kids' show, this is not explicitly mentioned or shown.
Although he is a hard worker, he also likes his leisure time, which makes Kris sometimes think he doesn't pull his weight.
Practical-minded and handy at building things, Rosco doesn't come up with any scientific ideas, leaving that up to Kris.
He has a moustache and a bald patch and his remaining hair is styled upwards, reminiscent of the horn-like hairdo of the Pointy-haired Boss from the comic strip Dilbert.
In "Melting Moments", Kris hugs Rick's arm when she introduces him to her old school friend Lucy which makes them look like a couple.
Also in "Melting Moments", Miss Abernathy appears enamoured of Vortex, even calling him by his first name, at least until his latest invention fails to live up to his promises.
In the remainder of the episodes, Vortex will be doing something that just coincidentally is thematically related to the problem that Infinity Limited is solving.
Concepts are explained to other characters, not directly to the children in the audience, and later demonstrated on screen to make it engaging for the kids watching.
In this episode Kristal returns to headquarters to find a large box outside and uncompleted renovations inside.
When they overhear a comment from Infinity Ltd. via the air-conditioning duct, Vortex has a brainstorm and constructs what he is certain is the correct version.