Two Ottawa teens are looking to put their 4-H experience to the test — and notch another battle in their sibling rivalry — all on national TV.

Bailey Corwine and Brett Whittington, West Franklin High School students and step-siblings, will make their national television debut in the March 18 episode of “Tough Grit.”

Corwine and Whittington compete against each other in the “Don’t Count Your Chickens” episode of “Tough Grit,” a DIY television show that combines information from rural-lifestyle experts at GRIT magazine and Tractor Supply Company with competitive challenges between two teams. They will square off in two challenges to build housing for chicks and rabbits based on efficiency, accuracy and safety. Challenge winners will earn up to $1,000 in Tractor Supply Company gift cards.

Both Corwine and Whittington are members of the Willing Workers 4-H Club.

The show airs 6 p.m. Mondays on RFD-TV. Viewers can watch episodes at ToughGrit.com beginning the day after they’ve aired on RFD-TV.

RFD-TV airs on DirecTV (channel 345) and Dish Network (channel 231). Visit www.rfdtv.com for other listings.