http://abcnews.go.com/Entertainment/john-stamos-guest-star-galavant-singing-knight/story?id=24790161

He’ll guest as Galavant’s longtime rival. PLUS: Introducing “Sad Full House." (http://www.dailydot.com/lol/sad-full-house-sitcom-makeover/)
Read more at http://www.hitfix.com/tv-tattle#4sLVKI4LDJ25cWF3.99