I have been a huge Kevin Smith fan from the beginning, and I know I have some gems in my collection here and there.
Primarily, I recorded lots of promotion for "Jay & Silent Bob Strike Back," including an E! special, an MTV2 special, a night of Kevin Smith material on FX, appearances on the Tonight Show, Politically Incorrect, and Regis & Kelly.
I have an MTV "Secret Stash" special done around the introduction of the MTV bumpers that were later recycled as bonus features (with the copyrighted music stripped out, natch).
I know I have a couple of Kevin's "Roadside Attractions" bits he did for The Tonight Show.
I hope I still have in my possession Kevin and Joey Lauren Adams on the MTV incarnation of Squirt TV.