Great research, guys. I can see you put a lot of work into this.
Yes, only one 'Wide' in 'Wide World of Sports.'
Just listening to some of the tracks and even with Holiday's obvious enthusiasm, I suspect one of the problems is much like Dozier with Dick Tracy and Mr. Memory. You've got the recognizable hero but no recognizable villain for him to play off. But, as you noted, Lex Luthor certainly doesn't fit in this universe.
I must admit, just in that one cut from the 1975 version, David Wayne still had 'it'--he sounded menacing. It might have been interesting had he done the role in 1966, and he did a lot of Broadway around then. He could've given it some 'oomph.'
BTW, in
He & She, which ran in 1967-68, Jack Cassidy played the hero, Jetman, of a TV show born from the comic strip created by Richard Benjamin's character.
(Semi-off-topic, BWH, I do agree that I would have preferred Warren to Kidder in the Superman movies.)
'I thought Siren was perfect for Joan.'--Stanley Ralph Ross, writer of 'The Wail of the Siren'
My hobbies include gazing at the Siren and doing her bidding, evil or otherwise.
'She had a devastating, hypnotic effect on all the men.'--A schoolmate describing Joan Collins at age 17