First of all how can you not like TASAnd The Batman is a horrible show. I could go on about how horribly they destroyed all that is Batman in that series, it makes me sick. But it's probably because I am such a super fan of TAS.
Makes you sick because of the graphic nature of the show? Understandable.
I agree that all 4 seasons out on DVD now should be bought at once. I recently watched all four seasons over the course of four days (I've been very free lately). It was DOMINANT.