Criar legenda .srt para os vídeos do TED

gistfile1.js

$.getScript("http://momentjs.com/downloads/moment.min.js", function() {
	$.getScript("https://raw.github.com/eligrey/FileSaver.js/master/FileSaver.js", function() {
		var SUBTITLE_DELAY = parseInt(prompt("Subtitle delay", "10800"), 10);
		var zero = moment();
		zero.hour(0).minute(0).second(0).milliseconds(0);
		var legendas = [];
		$('[class="transcriptLink"]').each(function() { 
			var elapsedMs = parseInt(this.href.split("#")[1], 10);
			legendas.push({
				inicio: zero.clone().millisecond(elapsedMs + SUBTITLE_DELAY)
				, texto: $(this).text()
			});
		} );

		var srt = "";
		var formato = 'HH:mm:ss,SSS';
		$.each(legendas, function(i, legenda) {
			var proximaLegenda = legendas[i+1] || {inicio: legenda.inicio.clone().add('seconds', 5)};
			srt += (i + 1) + "\r\n";
			srt += legenda.inicio.format(formato) + " --> " + proximaLegenda.inicio.format(formato) + "\r\n";
			srt += legenda.texto + "\r\n\r\n";

		});
		if (console && console.log)
		  console.log(srt);
		if (Blob) {
			var file = new Blob([srt], {type: "text/plain;charset=utf-8"});
			saveAs(file, $('#altHeadline').text() + ".srt");
		}
	});
});

Criar o seguinte atalho no navegador:

Nome:

Salvar legendas do TED

URL:

javascript:$.getScript("https://gist.github.com/gabrielmoreira/7217529/raw/gistfile1.js");