AMC’s The Walking Dead midseason finale spiked to its biggest ratings ever.

Sunday’s hour delivered 14.8 million viewers and an incredible 9.6 adults 18-49 rating. That’s up 23 percent from last year’s winter finale and marks the highest-rated midseason finale in the show’s history.

Overall, TWD is up about 13 percent from this point last year—just when you think this show might have peaked, it surprises you once again. Post-show Talking Dead also had its highest-rated mid-season finale, with 6.6 million viewers and 4.2 million adults 18-49.

For more, check out Dalton Ross’ extensive coverage, like his interview with showrunner Scott Gimple and chat with Norman Reedus.