American Idol’s eleventh season debuted last night, and “season one-one,” as Randy Jackson wouldn’t stop saying, was pretty much the same thing as always. And while the show remains far and away the most popular series on television, it lost 24 percent of its viewers 18 to 49 compared to last season’s debut. The debut a year ago was Jennifer Lopez and Steven Tyler’s first appearance on the show, so there was obviously increased interest then, and they remain the most interesting part, if only because they are less predictable than the rest of the show. That’s especially true since Steven Tyler continues to say whatever comes into his mind—like when a female auditioner’s family came in and he told her dad it was “hot, humid, and happenin,’” adding, “just like your daughter.” Anyway, the episode averaged 21.9 million viewers, which was down versus 26.25 last year, and it lost 24 percent of its viewers 18 to 49. TV By the Numbers reports . That continues the general trend of declining ra...