This week's most addictive reality pick in Australia on Amazon Prime Video, and in the US on Amazon Prime Video is Scrapheap Challenge. Every one of its 12 seasons holds up. With 23 viewer ratings on TMDB, this is not a title flying under the radar. The production never lets the format go stale. There is no real reason to keep putting it off — it is right there on Amazon Prime Video.

Whatever else is competing for your attention this week, Scrapheap Challenge is worth clearing space for. Scrapheap Challenge understands that the format only works if the people in it feel real. Scrapheap Challenge is an engineering game show produced by RDF Media and broadcast on Channel 4 in the United Kingdom. In the show, teams of contestants had 10 hours in which to build a working machine that could do a specific task, using materials available in a scrapheap. The format was exported to the United States, where it was known as Junkyard Wars as a completely different TV series. Robert Llewellyn and Lisa Rogers bring the kind of presence that makes the format work. It ran for 12 seasons (1998–2010), and the writing holds up across every one of them. The format has been replicated endlessly since Scrapheap Challenge first appeared, which is its own form of tribute. It delivers reliably on what it promises, which is more than most of its competition manages.

If the format appeals to you at all, Scrapheap Challenge is one of the stronger examples of it. Viewers who responded to The Challenge will find a lot to like here too. 12 seasons gives the story real room to develop. The casting and production never let it go stale. The kind of thing that disappears an evening without you noticing.

Scrapheap Challenge wrapped up in 2010 — and 12 seasons are available to watch from start to finish. Find exactly where it's streaming below, and TV Butler Pro makes it effortless to track your progress as you go. Just search the name, and Butler finds it instantly, tells you which service has it, and remembers exactly where you left off.