I remember missing the first show of this series because of going out of town for my birthday. The next week I saw the second part of that 2-part Superboy ep. Superboy was weakened by a red sun but Krypto was not. Then when Krypto carried a lead shield over Superboy, there came his powers back! Out of line with the comics, and too easy a resolution, just like the Superman stories.
The only notable thing about this one is that Bob Hastings, Superboy's voice, would voice Commissioner Gordon on BTAS some 25 years later.