ðə θˈɜːtiːnθ ˈɛpɪsˌoʊd pɹədˈuːst, ɪt wʌzðə sˈɛvənθ ˈɛpɪsˌoʊd təbi bɹˈɔːdkæst ɪnðə jˌuːkˈeɪ ˌɔn ˌaɪtˌiːvˈiː ˌeɪtˌiːvˈiː mˈɪdləndz ænd ɡɹˈæmpiən ˌɔn fɹˈaɪdeɪ tˈɛn noʊvˈɛmbɚ nˈaɪntiːnhˈʌndɹɪd sˈɪksti sˈɛvən, ænd fˈɜːst ˈɛɹd ɪnðə juːnˈaɪɾᵻd stˈeɪts ˌɔn sˌiːbˌiːˈɛs ˌɔn sˈæɾɚdˌeɪ twˈɛnti dʒuːlˈaɪ nˈaɪntiːnhˈʌndɹɪd sˈɪksti ˈeɪt.
The thirteenth episode produced, it was the seventh episode to be broadcast in the UK on ITV (ATV Midlands and Grampian) on Friday 10 November 1967, and first aired in the United States on CBS on Saturday 20 July 1968.