One of my all-time favorite moments in the whole genre was at the end of the Lois & Clark episode with Tempus after his defeat right before he gets arrested:
Tempus: Superman, as long as I have you here, just answer one thing for me.
Why tights? Why a cape? You're a grown man, don't you feel ridiculous?
Superman: My mother made it for me.
In somewhat related news, the documentary about Real-Life Superheroes called Your Friendly Neighborhood Hero just came out on DVD. Will have to check it out, hopefully it's better than that abysmal reality show, Who Wants to be a Superhero?. I still don't know how Stan Lee got through two seasons of it with a straight face.