@ -145,7 +145,7 @@ class CeskaTelevizeIE(SubtitlesInfoExtractor):
if m:
yield m.group(1)
start, stop = (_msectotimecode(int(t)) for t in m.groups()[1:])
yield "{} --> {}".format(start, stop)
yield "{0} --> {1}".format(start, stop)
else:
yield line