Each episode involves performers walking through a door into an unknown situation, greeted by the line "Thank God you're here!". They then had to improvise their way through the scene. At the end of each episode a winner was announced.
4/5/2006
3/7/1965
12/5/1999
2/3/2012
2/11/2007
11/8/1990
2/15/1967
1/13/1989
10/16/1999
9/16/2003
5/4/2002
3/11/2005
10/24/1989
1/20/2009
6/14/2016
1/3/1991
7/29/2004
4/5/1987
11/9/1998
11/19/2005
4/8/1994