That's when the first "throuple" of the series was introduced, bringing together two women and a man in a polyamorous relationship. Many House Hunter fans praised HGTV on social media for being so "progressive" and "educational" about the relationship dynamics of a throuple.
Just when you think you've seen it all on House Hunters, a show that has produced close to 2,000 episodes, enter Brian, Lori and Geli, a throuple in search of their dream home in Colorado.
At one point in the episode, Lori remarked about the lack of space in one house they were touring, saying, "This is a couple's kitchen, not a throuple's kitchen".
Eventually, they chose a handsome house that - while it was above their initial budget - had a lovely mountain view.
As was detailed in the episode, Brian and Lori were already legally married to each other when they met Geli at a bar and fell in love with her.
Fans also came to Brian, Lori and Geli's defense following the broadcast.
HGTV viewers were stunned to see the network feature a throuple in one of their episodes - and many praised them for their fearless decision.
'Oh my god. A throuple on House Hunters, ' tweeted feminist author Roxanne Gay, who later added: 'Great episode! I love this throuple, TBH. You have my FULL attention now lol #HouseHunters'. I'm disappointed in #HGTV for promoting this as normal, ' one critic tweeted.
"HGTV really might be the most progressive show on TV". About to watch a polyamory couple fight over a house!' another commented. I'm disgusted you made a decision to air this and I won't be watching HGTV again, ' wrote another shocked viewer.
"Literally ideal television", a third tweeted, while another user applauded HGTV for "STORMING into 2020".
House Hunters is showcasing a different kind of relationship! "Guess we gotta stan!" one wrote on Twitter. The three shared a commitment ceremony in Aruba just a few months before filming their House Hunters episode.