Steve Wozniak used to roam around with a tv jammer for fun in his college days =) Days of antenna tvs.
Although a recent BBS digging got me Dr.Rat's 7404 based device and also a 2n2222 schematic.. both of them were not working (no surpise here)... I have a digital tv.
Question here: Woz's jammer worked on crt exploit or was it an rf exploiting device?
P.S:- After my prior EMP posts ,i stumbled upon this schematic but even its not working