(Or "WHAT WERE THEY THINKING?!?!?!?!?!?")
Sometimes, when trying to come up with ideas for ongoing series (whether in comics, TV, movies, books, radio, et cetera) creators make mistakes that are truly inexplicable. All you can do, on seeing them, is shake your head in despair and wonder what made them think it was a good idea to insert an idea into a series that was bound to do nothing but make them miserable in trying to follow it. 'Dial H For H-E-R-O', the mid-60s series from DC, is perhaps the textbook example of an obvious bad idea for an ongoing series--so much so that you have to wonder why they didn't spot the problem right away.
The series makes other mistakes, too, but they're understandable ones. It's understandable that they tried to duplicate the burgeoning "teen hero" craze by making a main character, Robby Reed, who combines all the worst traits of Wesley Crusher and Snapper Carr. (Every time you think you're about to stop hating him, he breaks out his "Sockamagee!" catch-phrase again...) It probably seemed like a good idea to give him an elderly grandfather who's indulgent about Robby's habit of wandering off, even though to modern audiences Grandpa seemed like he was skirting the child neglect laws. It might even have seemed like a good idea to set the series in the idyllic small town of Littleville, forcing Robby to do a lot of commuting to get to the exciting bank robberies and sinister schemes he had to stop.
But what on Earth possessed them to give Robby a magic dial that turned him into a different super-hero every single time he used it? (Which was, on average, three times an issue.) What made writer Dave Wood think that he could really come up with two to three interesting super-heroes (name, concept, powers and abilities) every single issue? To come up with a single good super-hero idea is exhaustingly difficult sometimes; even home-run hitters like Jack Kirby came up with the occasional dud. Trying to do three a month, well...it's no wonder we saw silly ideas like "King Kandy", cringe-inducingly racist ones like "Chief Mighty Arrow", instantly dated ones like "Robby Go-Go", or blatant rip-offs like "Plastic Man" and "Magneto". (The former was at least acknowledged as a deliberate duplicate of the existing character.)
A concept like this handicaps the creative team right from the start. Instead of generating story ideas, it consumes them voraciously, forcing them to come up with more concepts per issue than many writers use in an entire year of stories. Later reboots of the series tried to solve the problem by using fan-made super-heroes (these issues aren't included in the Showcase Presents collection, presumably because of worries about some forty year old trying to sue for a share of royalties on their character) but it's still a terribly exhausting idea. And when you're trying to build a series to last, the one thing you don't want is a series that burns you out, creatively, faster than normal.
And you also don't want a lead character that responds to everything with a rousing, "Sockamagee!" I cannot stress that enough.