Next month, "Parenthood" will return to NBC with all-new episodes that promise to offer major changes in the comedic-drama series.

The popular sitcom is scheduled to air a new episode on Feb. 27, right after the 2014 Winter Olympics air on NBC. According to NBC, in the upcoming episode, "Just Like Home," "The Bravermans struggle to adjust to new living arrangements as the bomb drops: Zeek and Camille want to sell the house." In addition, Ray Romano will make a guest appearance.

A preview video shows that Sarah will go on another date with Carl, Julia and Joel will spend some time living apart and Zeek will put his beloved house on the market.

Earlier this month, David Walton, the star of NBC's new sitcom "About a Boy," made a crossover appearance on the "Parenthood" in character as Will Freeman. In the "Parenthood" crossover episode, Will showed up at The Luncheonette for a game of poker with Crosby Braverman played by Dax Shepard. Likewise, Crosby will make his appearance on the new comedy series in the same fashion.

If you're wondering what's behind these crossovers, the answer is easy: Jason Katims is the executive producer of both shows. "Because both shows are set in San Francisco and the Bay Area, it made sense that there would be [crossovers]," Katims said, according to The Hollywood Reporter.

"I've never done anything like that before," Katims said, adding, "It seemed like a natural thing to do."

Katims also noted that Crobsy's cameo on "About a Boy" will be just as discreet as Will's cameo on "Parenthood" last week.

"The one that aired on 'Parenthood' was so subtle because people don't know [About a Boy] yet, but I kinda liked that - not say anything about it and putting it out there," Katims said, reports Entertainment Weekly. "When Dax comes on to 'About a Boy' it will be very different. It's going to be a cameo. It won't be what the episode is going to be about. We're doing it in ways that feel real and organic to the shows."

If things go well, then expect to see other characters shifting back and forth from time to time, said Katims, who told The Wrap that it's "one-and-one" for now, but, "We'll see how that goes and then go from there."

"Parenthood" returns on Thursday, Feb. 27 with "Just Like Home" on NBC at 10 p.m. EST.

Watch a promo below.