THEN AND NOW: How the Kardashians have changed from the premiere of 'Keeping Up With the Kardashians' to the first episode of their new Hulu show

Kourtney, Kim, and Khloé Kardashian on the series premiere of "Keeping Up With the Kardashians" in 2007.E!

• "Keeping Up With the Kardashians" premiered 15 years ago in October 2007.
• The family's new Hulu show, "The Kardashians," premiered on April 14.

In the first episode of "KUWTK," Kim is preparing for her first television interview on "The Tyra Banks Show." In the series premiere of "The Kardashians," she's just learned that she's going to be hosting "SNL."

Kim Kardashian on the series premiere of "Keeping Up With the Kardashians" (left) and "The Kardashians" (right).      E!/Hulu

Khloé Kardashian's intro line on "Keeping Up With the Kardashians" is about how her sisters say she's "a bitch." In the new Hulu series premiere, she's dealing with her relationship with Tristan Thompson, the father of her daughter True.

Khloé Kardashian on the series premieres of "Keeping Up With the Kardashians" (left) and "The Kardashians" (right).      E!/Hulu

In the premiere of "KUWTK," Kourtney goes through some turbulence with her then-boyfriend Scott Disick. On "The Kardashians," she's happily dating Travis Barker.

Kourtney Kardashian on the series premieres of "Keeping Up With The Kardashians" (left) and "The Kardashians" (right).      E!/Hulu

Kris Jenner celebrates her anniversary with Caitlyn Jenner in the first episode of "KUWTK." On "The Kardashians," she's helping her children manage their many businesses and dating Corey Gamble.

Kris Jenner on the series premieres of "Keeping Up With The Kardashians" (left) and "The Kardashians" (right).      E!/Hulu

Kendall Jenner helps to mix drinks at her parents' anniversary party on the premiere of "KUWTK." She begs out of the first family meal of "The Kardashians," saying that she's sick.

Kendall Jenner on the series premieres of "Keeping Up With The Kardashians" (left) and "The Kardashians" (right).      E!/Hulu

Kylie Jenner gets in trouble for pretending to pole dance on the premiere of "KUWTK." On "The Kardashians" premiere, she's preparing to give birth to her second child.

Kylie Jenner on the series premieres of "Keeping Up With the Kardashians" (left) and "The Kardashians" (right).      E!/Hulu

Kris Jenner questions why Scott Disick and Kourtney are dating on the premiere of "KUWTK." On the first episode of "The Kardashians," Khloé talks to him about not being invited to the first family meal of the show and how he feels about Kourtney's new relationship with Travis Barker.

Scott Disick on the series premieres of "Keeping Up With The Kardashians" (left) and "The Kardashians" (right).      E!/Hulu