The irreverent, satirical comedy Childrens Hospital returns for its fourth season to lampoon the medical show genre — and continue its reputation as the greatest hospital drama in the history of recorded media. Applauded for its tight stories and medical accuracy (not really), this season reaches new heights: an airborne virus threatens to destroy the hospital and perhaps society, a search for mysterious PA announcer Sal Viscuso reveals an undercurrent of evil powering the hospital, the origins of Chief’s handicaps are revealed, a beloved regular character dies several times and Sy gets a dog!