ratings. It subsequently attained the highest rating in the 18–49 demographic among cable television programs that year. Following two encore presentations, total viewership reached 8.1 million. "Days Gone Bye" became the highest-rated cable telecast ever, hitting significantly higher numbers than predecessors Swamp People and Ice Road Truckers on the History Channel. It obtained 2.1 million viewers from the 18–34 demographic and 3.1 million from the 25–54 demographic. It became the highest-rated non-sport cable program of the week, as well as the third highest-rated overall program of the week dated October 30; "Days Gone Bye" was outperformed by a game between the Miami Heat and the Boston Celtics as part of the 2010–11 NBA season and a match between the New York Giants and the Dallas Cowboys as part of the 2010 NFL season. It is the third most-watched installment of The Walking Dead first season, scoring less than "Wildfire" (5.56 million), and "TS-19" (5.97 million). "Days Gone Bye" garnered the highest total viewership for a season premiere out of any cable program up until the airing of its successor, "What Lies Ahead", which attracted 7.3 million viewers. "Days Gone Bye" achieved similar success in European markets. It debuted in 120 countries in 33 languages. In the United Kingdom, the episode acquired 579,000 viewers, with an estimated 315,000 from the 18–49 demographic. It became the most-watched FX telecast of the week dated November 5. The terrestrial premiere (including Ireland and Scotland) aired on Channel 5 on April 10, 2011, garnering 1.5 million viewers. In Italy, "Days Gone Bye" became the highest-rated telecast of the night on pay television, delivering 360,000 spectators. In Spain, the pilot episode attained a 10.2% share in the television market amongst pay television programs, ultimately obtaining 105,000 viewers. It became the highest-rated series premiere on Fox that year. The episode performed strongly in Asian markets. In South Korea, "Days Gone Bye" secured 57,000 spectators, subsequently becoming the highest-rated program on Fox that year. In Southeast Asia, total viewership hit 380,000, beating out all Western television programs. "Days Gone Bye" saw its strongest figures in Singapore and the Philippines, where its ratings exceeded the time slot average by 425% and 1,700%, respectively. "Days Gone Bye" achieved substantial ratings in the 18–49 demographic in several Latin American countries. In Argentina, the pilot episode attained a 3.5 rating in the 18–49 demographic, thereby outperforming the time slot average by 341%