…again. A friend of mine told me about Car­nivàle when it was orig­i­nally on TV. I don’t get HBO, though, and I wasn’t inter­ested in get­ting hooked on episodic TV either (which worked out well, aside from a slight Bat­tlestar Galac­tica addic­tion). But the first sea­son was on sale at Wal*Mart the other month, for …