In its original American broadcast on October 21, 2009, "W.T.F" was watched by 1.37 million overall households among viewers aged between 18 and 34, according to Nielsen ratings. Among that age group, it ranked behind the FX drama series "Sons of Anarchy", which drew 1.43 million household viewers, as well as game five of the 2009 National League Championship Series on TBS (1.56 million households) and a National Football League game between the Denver Broncos and San Diego Chargers on ESPN (3.57 million households).