Invader Zim Pre-Premiere Promos

For the life of me, I cannot find any of the Invader Zim promos that aired before its premiere.  They were short promos where the Irken Empire logo is displayed as it appears like a broadcast has been hacked, then something is shown before the announcer says "The Invasion Begins March 30th".  They never even said what they were advertising, making it mysterious. Eventually, the name "Invader Zim" was dropped in a promo where Dib literally hacks another commercial that usually airs normally, with his head on screen and him screaming a warning that Invader Zim is coming.

Does anyone else remember these or possibly know where I might find them online?