 The Independent 's Thomas Sutcliffe gave the episode a negative review and expressed that the episode was " extermination without inspiration " . Before the episode 's transmission , he was excited about how Dawkins and O 'Grady would appear , and was disappointed when they only appeared when Ianto was channel surfing . Sutcliffe expressed disbelief at the idea that O 'Grady would continue to film his talk show , and with a studio audience , in the midst of planetary disaster , but nevertheless praised the cameos . After the cameos , he " began to lose interest " because he did not like the continuity and crossover elements of the episode . He criticised the re @-@ occurrence of clichéd lines " But ... that 's impossible ! " , " It can 't be ! " , and " Exterminate ! " . He closed his review by requesting the producers to " change the record " . 
