Tom the Dancing Bug, a consistently amusing weekly comic, had a joke once about a comic strip called "Comics that follow the formal structure of a joke, but are so wholly and unambiguously unfunny, they defy classification as 'humor.'" Watching the commercial below made me think of that:
Ha ha! It's funny because the dog doesn't understand idioms! Stupid dog!
I'm pretty sure that Bush's used to just feature a voice-over for Duke, so I'm a little sad to see them go the "freakish CGI-animated mouth" route. Maybe they needed that to make Jay Bush seem a little less crazy, though. He never acknowledges the camera, and presumably he and Duke both know that (a) these are Bush's Baked Beans and (b) they use a special blend of spices, so who the fuck is he talking to at the start of the ad?
I must admit, though, that I'm amused by what I assume is the intentionally funny suggestion that Jay Bush makes all the Bush's Baked Beans in a crockpot on his home stove.