A B.C. brother-sister team has built its way to the final rounds of the on American television, with all eyes on the $100,000 grand prize.

LEGO-loving siblings , a Surrey resident, and his sister Emily, who lives in Maple Ridge, have excelled with their tiny-brick builds in this fall害羞草研究所檚 third season of FOX-TV害羞草研究所檚 reality-competition series, also seen on CTV.

David Guedes is a 害羞草研究所淟EGO lifer害羞草研究所� who successfully auditioned for the Will Arnett-hosted show, then chose his sister as team partner. The show finished shooting in Atlanta last spring, but the siblings are watching it now for the first time. They won害羞草研究所檛 (and contractually can害羞草研究所檛) say how it all ends Dec. 14 in a double-episode season finale.

害羞草研究所淒oing reality TV was completely new for me,害羞草研究所� David said. 害羞草研究所淚害羞草研究所檝e spent a lot of time building LEGO over the years, but never on camera.害羞草研究所�

In this week害羞草研究所檚 episode, to air Wednesday (Dec. 7), the Guedes are among four teams left in the competition. The pairs split into teams to build a race car. In a 10-lap race, the winning team will be safe from elimination and guaranteed a spot in the semi-finals.

In the 害羞草研究所渇inal four,害羞草研究所� the Guedes team is up against Calgary firefighters Stephen Joo and Stephen Cassley, an 害羞草研究所渋nfluencers害羞草研究所� duo of Nick Della Mora (Toronto) and Stacey Roy (Kelowna), and the American Tull brothers.

害羞草研究所� RELATED: .

So far, the challenges have included creating a LEGO bull-riding character to mount an actual mechanical bull, a 害羞草研究所淕uardians of the Galaxy害羞草研究所� build, a LEGO tree house with real trees, and more.

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Both in their mid-30s, the Guedes siblings had a lot of fun filming 害羞草研究所淟EGO Masters害羞草研究所� and also watching the episodes on TV over the past couple of months.

害羞草研究所淔ilming the show was so much fun,害羞草研究所� David said, 害羞草研究所渂ut I害羞草研究所檓 really enjoying watching it now. Despite knowing what happened when we were there on set, you don害羞草研究所檛 know how it害羞草研究所檚 going to be portrayed on television and what happened with the other teams. When we were there we were so focused on what we were building, we didn害羞草研究所檛 see what everyone else was building.

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David, known as Lettuce in the LEGO world, has been building with the bricks all his life, 害羞草研究所渢hough he had a 害羞草研究所榙im age害羞草研究所� in his teens, and didn害羞草研究所檛 buy any new sets for six years,害羞草研究所� .

In recent years he害羞草研究所檚 displayed LEGO creations at conventions, and lives in the Clayton area with his wife, two sons, a dog and a couple million little plastic bricks. .

David recalls a childhood in Maple Ridge with lots of LEGO around, starting with a big bucket of hand-me-down bricks when Emily was a baby. Now she works as a hospital unit clerk, and he害羞草研究所檚 a .

害羞草研究所淪he害羞草研究所檚 a great teammate,害羞草研究所� David said. 害羞草研究所淲e get along better than anyone else.害羞草研究所�

This season of LEGO Masters started Sept. 21 with 24 contestants competing in pairs, with a 害羞草研究所淗oliday Bricktacular害羞草研究所� special to air Dec. 19-21, days after the Dec. 14 season finale.

First, the semi-finalists have 10 hours to build a fountain that uses water. Then the three remaining teams have 24 hours to build their best creation possible. In a final twist, they害羞草研究所檙e given gift bags with the first sets they built as kids, to celebrate 90 years of LEGO. .

Next up for the Guedes siblings is a .

害羞草研究所淚害羞草研究所檒l display there as well as Emily and some others from the show,害羞草研究所� David reported. 害羞草研究所淲e get together any chance we get, at conventions all over the place.害羞草研究所�

- with files from Neil Corbett, Black Press Media