If you wanna watch the episode where Chad guest stars on So Random (and he and Sonny are love interests!) then go here:
.com/watch?v=14zikg7SQMc&feature=related
It's in Spanish (I think it was only aired in Spain) but there are English subtitles! It includes SO much Channy (almost the entire episode)!
If I must say so myself, it's not exactly the way I'd have it play out, but it's not that bad ;)