Pyramid House, the home of local attorney Harry T. Wilks and the inspiration for Pyramid Hill Sculpture Park, will be featured in an episode of “Extreme Homes” this week.

A film crew from London spent a full day about two months ago filming the home’s interior and exterior, Wilks said.

He designed the 7,500-square-foot Pyramid House and started living there in 1992.

“I haven’t seen it yet,” he said of the TV episode, “and I really didn’t have any say in it, so I’m not sure what they’re going to focus on.”

“I was out working in the park and came in to answer a few questions,” he said.

“Extreme Homes” features stories about homeowners who are “pushing the envelope as far as possible,” according to the Home and Garden Television website. “From construction to completion, take an up-close look at some of the world’s most spectacular houses ever built.”

“With a feature in the magazine Architectural Digest and two other national television shows, the Pyramid House is becoming one of the most famous underground homes in America,” Wilks said.

The episode premieres on HGTV at 9 p.m. Thursday and repeats at midnight. It airs again at 8 p.m. Oct. 21 and 3 a.m. Oct. 22.

Also on that episode will be stories on an Australian house wedged into the dunes, a corrugated steel residence in Japan, a house in a cave where outlaws used to hide in Arkansas and a pocket skyscraper in Thailand.