I was there, at the San Diego Comic-Con, when the original "Flash" TV series, starring John Wesley Shipp, was announced and previewed. And the crowd went wild.
1990 was a dark era for super-hero stuff, and SF on TV in general. "The Flash" was a breath of fresh air, with a visual palette out of Dick Tracy, with murals and primary colors and retro buildings general referemces to a comic-book world.
Oh, and the Tim Burton Batman got a call-out, too, with the Flash muscle suit (and Danny Elfman music).
John Wesley Shipp was a fine Flash, with Amanda Pays as (then comic canon) Tina McGee. I applaud mightily the producers of the current "Flash" series for including both those actors in the new seiries.
If you haven't caught Mark Hamil's return as The Trickster then you're missing one of the best episodes of the new series.
+Les Jenkins Oh, it was fantastic (including visuals from his appearance on the old JWS version of "The Flash"). The biggest challenge for Hamill was trying to avoid sounding like his Joker rendition.