Giganzilla,
There's a lot more Japanese superhero series than ULTRAMAN kith and kin (or Tsuburaya Productions); between 1971 and 1979 there were over sixty superhero/tokusatsu series produced by various studios/networks -- so that's a lot to work with.
TorJohnson,
DYNAMAN? Sorry, the Sentai Series are controlled by Village Roadshow/Disney, so Toei wouldn't sell the series to US distributors, because of cross-licensing. So, no Sentai Series for you -- unless Village Roadshow decides to release some of them on DVD.
