Which sketch comedy show from the early 1990s featured Jim Carrey and the Wayans family?

Which HBO weekly show is hosted by John Oliver? Which HBO show is hosted by Bill Maher? Which comedian hosted 'Chappelle's Show' on Comedy Central? Which comedy duo created the sketch show 'Key & Peele'? Which 'Saturday Night Live' cast member famously played "Church Lady"? Which 'Saturday Night Live' sketch introduced Wayne and Garth? Which 'SNL' cast members played the Blues Brothers? Which comedian starred as a fictionalized version of himself in 'Louie'?