Good lord, why Joan Rivers? Why? Why couldn't they give Francine a grandpa voiced by Don Rickles instead?
Aw, but I ♥ Bailey. He's had speaking roles ever since Season 1 (even though they're mostly generic butler lines), so it's not like he was shoehorned in like the other extras.
"Muffy's Art Attack"?
Joan Rivers did pretty good voicing Bubbie IMO.