I don't know why, but I never seem to get offended by people poking fun at my favorite shows. Maybe because there's always a hint of truth in the spoofs that can't be avoided. Or maybe it's just that I appreciate really good sarcasm.
Like in this spoof of Don Draper (from Mad Men): Link here
Or even these written jabs at my favorite t.v. show, Thirtysomething: Link here
When people take the time to write humorous dialogue or even dress up in costume to pay hilarious tribute to a beloved show -- and when they get it right -- well, it just might be the sincerest form of flattery.