My late night horror memories stem from watching episodes of "USA Up All Night" hosted by either Rhonda Shear or Gilbert Gottfried. There was also a daytime equivalent of their show hosted by Commander USA. Goddamn, that's when TV was truly awesome.
BEHOLD THE EVIDENCE!
Rhonda
http://www.youtube.com/watch?v=Z0tI-6aKYKQ
Gilbert
http://www.youtube.com/watch?v=1hyhYiAzpv0
Commander USA
http://www.youtube.com/watch?v=aCLintTq5yw
http://www.youtube.com/watch?v=ssoe8dBByaw (the zombie song!)
Goddamnit I miss these shows so much. If I could ever get a TV show of my own, this is exactly the kind of shit that I would bring back.