With the 2011 cancellation of Supernanny, Extreme Makeover: Home Edition became the only remaining program on the network's schedule that was broadcast in 4:3 standard definition. All of the network's programming has been presented in HD since January 2012 (with the exception of certain holiday specials produced prior to 2005 – such as the Peanuts specials and Rudolph's Shiny New Year – which continue to be presented in 4:3 SD), when Extreme Makeover: Home Edition ended its run as a regular series and One Life to Live (which had been presented in 16:9 standard definition since 2010) also ended its ABC run. The affiliate-syndicated Saturday morning E/I block Litton's Weekend Aventure is also broadcast in HD, and was the first children's program block on any U.S. broadcast network to feature programs available in the format upon its September 2011 debut.
In what year was Supernanny canceled? In 2011, which program became the only ABC broadcast in 4:3 standard definition? Since January 2012, all ABC programming has been presented in what format? What was the program in the first Children's program block to be broadcast in HD?