The novelty of a dog "breaking the fourth wall" is not new. It was done in 1955 on a sitcom starring actor Jackie Cooper. When I was a kid, this show was in syndication. Local TV station in Los Angeles aired it as Saturday morning kid fare along with cartoons and such. The show was called THE PEOPLE'S CHOICE. The less chatty and funnier dog was named Cleo.
As for DOWNWARD DOG...let's see if the TV audience takes to a neurotic housepet that talks too much. Who knows? I thought it was so-so, but the public might dig it.