The Eighth Doctor's appearance is during the time when he is amnesiac and stranded on Earth for a hundred years.
ðɪ ˈeɪtθ dˈɑːktɚz ɐpˈɪɹəns ɪz dˈʊɹɹɪŋ ðə tˈaɪm wɛn hiː ɪz æmnˈiːziˌæk ænd stɹˈændᵻd ˌɔn ˈɜːθ fɚɹə hˈʌndɹɪd jˈɪɹz.