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含羞草研究社檚 third season of FOX-TV含羞草研究社檚 reality-competition series, also seen on CTV.

David Guedes is a 含羞草研究社淟EGO lifer含羞草研究社� 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含羞草研究社檛 (and contractually can含羞草研究社檛) say how it all ends Dec. 14 in a double-episode season finale.

含羞草研究社淒oing reality TV was completely new for me,含羞草研究社� David said. 含羞草研究社淚含羞草研究社檝e spent a lot of time building LEGO over the years, but never on camera.含羞草研究社�

In this week含羞草研究社檚 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 含羞草研究社渇inal four,含羞草研究社� the Guedes team is up against Calgary firefighters Stephen Joo and Stephen Cassley, an 含羞草研究社渋nfluencers含羞草研究社� duo of Nick Della Mora (Toronto) and Stacey Roy (Kelowna), and the American Tull brothers.

含羞草研究社� RELATED: .

So far, the challenges have included creating a LEGO bull-riding character to mount an actual mechanical bull, a 含羞草研究社淕uardians of the Galaxy含羞草研究社� 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 含羞草研究社淟EGO Masters含羞草研究社� and also watching the episodes on TV over the past couple of months.

含羞草研究社淔ilming the show was so much fun,含羞草研究社� David said, 含羞草研究社渂ut I含羞草研究社檓 really enjoying watching it now. Despite knowing what happened when we were there on set, you don含羞草研究社檛 know how it含羞草研究社檚 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含羞草研究社檛 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, 含羞草研究社渢hough he had a 含羞草研究社榙im age含羞草研究社� in his teens, and didn含羞草研究社檛 buy any new sets for six years,含羞草研究社� .

In recent years he含羞草研究社檚 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含羞草研究社檚 a .

含羞草研究社淪he含羞草研究社檚 a great teammate,含羞草研究社� David said. 含羞草研究社淲e get along better than anyone else.含羞草研究社�

This season of LEGO Masters started Sept. 21 with 24 contestants competing in pairs, with a 含羞草研究社淗oliday Bricktacular含羞草研究社� 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含羞草研究社檙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 .

含羞草研究社淚含羞草研究社檒l display there as well as Emily and some others from the show,含羞草研究社� David reported. 含羞草研究社淲e get together any chance we get, at conventions all over the place.含羞草研究社�

- with files from Neil Corbett, Black Press Media