In 2008 Patricia & Rosanna Arquette performed on TV for the first time together on this show
[DOC] [TLE] Preview: Rosanna Arquette Guest-stars on Medium ... - TV Guide [PAR] The last time they performed together was as kids in their parents' living room, but 
Patricia and Rosanna Arquette will finally reprise their act on the April 7 episode 
of Medium ... by Dana Meltzer Zepeda | Apr 7, 2008 4:00 AM EDT ... Caron has 
been a fan of Rosanna's since he first saw her turn as a love-struck teenager in... [DOC] [TLE] Patricia Arquette - Wikipedia [PAR] Rosanna Arquette (sister); Alexis Arquette (sister); Richmond Arquette (brother); 
David Arquette (brother); Cliff Arquette (grandfather).