MTV’s “Jersey Shore Family Vacation” got off to an impressive start in the ratings with its launch on Thursday.

The two-hour premiere averaged 2.5 million viewers, according to Nielsen Live+Same Day data. In addition, it drew a 1.9 rating in adults 18-34, the young adults demographic targeted by the Viacom-owned cabler. In the adults 18-34 demo, “Jersey Shore Family Vacation” is MTV’s highest rated new show in six years. In adults 18-49, the show averaged a 1.5 rating.

While nowhere near the ratings the original “Jersey Shore” saw in its heyday, the numbers are still noteworthy for a reality series launch in the current TV landscape.

The original series ran from 2009-2012 on MTV. The new series featured the return of original housemates Deena Nicole Cortese, Paul “Pauly D” Delvecchio,” Jenni “JWOWW” Farley, Vinny Guadagnino, Ronnie Ortiz-Magro, Nicole “Snooki” Polizzi and Mike “The Situation” Sorrentino. The network has already renewed the show for a second season.

495 Productions founder and CEO SallyAnn Salsano serves as executive producer for “Jersey Shore.” Nina L. Diaz and Jackie French serve as executive producers for MTV.