The couch gag for last night’s “Simpsons” episode was animated by “Ren & Stimpy” creator John Kricfalusi, and it’s precisely as crude and weird as “Ren & Stimpy” was, with all the carefully defined cartoon buttocks you would prefer not to see. Other websites have posted lousy buttcam video of the clip, but I’ve got the OFFICIAL high-quality version released by Fox (see below) because I want you to have only the best possible blog-reading experience. Warming Glow: the TV blog that cares about YOU (unless it’s inconvenient or undesirable to me).