+        tv_webpage = dl_webpage('tv')
+
+        assignments = self._search_regex(
+            r'(var.+?mediastring.+?)</script>', tv_webpage,
+            'encoded url').split(';')
+
+        js_vars = {}
+
+        def parse_js_value(inp):
+            inp = re.sub(r'/\*(?:(?!\*/).)*?\*/', '', inp)
+            if '+' in inp:
+                inps = inp.split('+')
+                return functools.reduce(
+                    operator.concat, map(parse_js_value, inps))
+            inp = inp.strip()
+            if inp in js_vars:
+                return js_vars[inp]
+            return remove_quotes(inp)
+
+        for assn in assignments:
+            assn = assn.strip()
+            if not assn:
+                continue
+            assn = re.sub(r'var\s+', '', assn)
+            vname, value = assn.split('=', 1)
+            js_vars[vname] = parse_js_value(value)
+
+        video_url = js_vars['mediastring']
+
+        title = self._search_regex(
+            r'<h1>([^>]+)</h1>', tv_webpage, 'title', default=None)
+
+        # video_title from flashvars contains whitespace instead of non-ASCII (see
+        # http://www.pornhub.com/view_video.php?viewkey=1331683002), not relying
+        # on that anymore.
+        title = title or self._html_search_meta(
+            'twitter:title', webpage, default=None) or self._search_regex(
+            (r'<h1[^>]+class=["\']title["\'][^>]*>(?P<title>[^<]+)',
+             r'<div[^>]+data-video-title=(["\'])(?P<title>.+?)\1',
+             r'shareTitle\s*=\s*(["\'])(?P<title>.+?)\1'),
+            webpage, 'title', group='title')
+
+        flashvars = self._parse_json(
+            self._search_regex(
+                r'var\s+flashvars_\d+\s*=\s*({.+?});', webpage, 'flashvars', default='{}'),
+            video_id)
+        if flashvars:
+            thumbnail = flashvars.get('image_url')
+            duration = int_or_none(flashvars.get('video_duration'))
+        else:
+            title, thumbnail, duration = [None] * 3
+