Originally Posted by HDTV_Duffus
I guess I shouldn't be surprised that the local station engineers haven't joined the conversation
If you look at the Fox 13 bug, you'll find that the one that runs during programming at the lower right is transparent, to minimize burn-in.
The full-color one that is used on the lower left during newscasts is constantly moving, spinning at the top and bottom, and with the "searchlights" moving in the middle. Same reason.