This week "Saturday Night Live Weekend Update Thursday" opened with a clever skit about the Joe Wilson's "You lie!" shout out during President Obama's address to a joint session of Congress about Obamacare.
In the skit, SNL has Republicans conspiring to "You lie!" in unison during Obamacare speech, then changing their minds without telling Wilson.
After watching the opening skit you should watch the impression of James Carville talking about last weekend's huge Tea Party protest in Washington, D.C. It starts at about the 7:00 mark.