I'm about 23 now and I have a VERY vague memory of something I saw that scared the crap out of me when I was 7 or 8 years old. I don't know where it was, I want to say Sesame Street since I watched it so often, but I also watched Cartoon Network back then and it might have been from there.
It was this red (possibly orange) demonic looking thing animated in CGI. It may have appeared on a screen or monitor. It had these creepy yellow eyes and I recall a mouth that looked like a vent… I remember it had a deep evil voice, and that at one point it said "Who am I?" and laughed evilly. That's the ONLY thing I remember about it.
I saw it for a short time and every time it appeared I'd run out of the room. If this was SS, I think they took it off because it was scary. This thing gave me nightmares and I wanna know what it was!