What are the "Ellen Codes"?

"on a New York TV station about three days before Halloween some type activation codes scrolled across the screen. Never seen anything like it."

"Yes, and we all did what we were supposed to do. It didn't work because SOMEONE (OP...) did not do their part."

"If I remember correctly it was scrolled on a grayish marquee.

The codes were like 6 or 8 digits and looked like tail numbers or like bus numbers. They were a mix of numbers and letters. A bunch of different ones scrolled across the screen.

I have no idea what they meant"

"I noticed some of the letters were in Cyrillic"
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