WKRC-TV in Cincinnati (the CW affiliate) celebrates no traffic accidents with DANCE PARTY FRIDAY!
While not a blooper, per se, in most circumstances, hearing an anchor say “Get a nut, to move your butt” would qualify for our collection.
Thanks to our friends at the Delta Park Project for sending this to us.

Another example of the graphics department working overtime to ensure the most professional newscast possible.  And man, that overlay stays on screen for a looooong time.
RTV 6′s Morning Show has never been so edgy.