Regarding the subject of limited animation in HD, I'm reminded of an episode of FAMILY GUY that mocked the art gallery scene in FERRIS BUELLER'S DAY OFF.
The camera alternately showed Stewie's face and a French Impressionist painting. The shots of each kept getting closer and closer. More and more detail emerged in the painting, while Stewies' face was revealed to contain less and less. The animation art is utterly smooth and featureless. It was a brilliant and self-deprecating commentary on the quality of TV.