Will the Real Robin Please Stand Up?

One Robin just not enough for you? Catwoman enlists a wayward teen, a Robin look-alike, to take Robin's place, and learn all of Batman's secrets. Meanwhile, she leaves the real Robin dumped into a construction pit in the back of a van, buried under tons of rocks. Includes a "training" scene not shown on cable. Will the REAL Robin please stand up??

Some voices:
Batman: Olan Soulé
Robin & impostor: Casey Kasem
Catwoman: Jane Webb
Narrator: Ted Knight (2 years BEFORE "Mary Tyler Moore")

TVLand once stated that Olan Soulé voiced Batman on Radio in the 1940's, but this is in dispute. TVLand has been known to make mistakes. We do know that Filmation's voice of Superman in their 1966 cartoons, Bud Collyer, DID voice Superman on Radio in the 40's.