I was taking a break from posting, but this is such a thrilling discussion I just had to jump in.
I'll always blame for VH1 for starting the whole corner logo craze. Perhaps they weren't the very first, but they're the first I remember seeing.
I don't mind the logos so much anymore, but now it's these idiotic 'crawls' that drive me nuts. I remember an SNL sketch a few years back where they made fun of MSNBC's over-use of screen graphics by continuing to add stuff until you couldn't even see the news anchor anymore. Sadly, that joke has nearly become reality.