HBO's newest series, The Last of Us, is setting viewership records at the network. This past Sunday's second episode, titled "Infected," reached 5.7 million viewers across linear TV and HBO Max over its first night in the US, which was good for a 22% spike in viewership from the January 15 premiere. This was the highest percentage growth for an original HBO show from its premiere to its second episode in the history of the network, according to Variety.

For comparison, episode two of House of the Dragon reached many millions more viewers--10.2 million--but the percentage growth compared to the premiere was only 2%.

The January 15 series premiere of The Last of Us, meanwhile, has now climbed to 18 million viewers in its first week, which is more than four times the viewership for its premiere of 4.7 million. The debut of The Last of Us on HBO was the network's second-biggest series premiere since 2010, only trailing House of the Dragon.