"Boo-Ya!" origin explained

[Bapopik at AOL.COM]

   Espn.go.com says that UP CLOSE, Tuesday, May 8th, 5:30 p.m. ET on ESPN and rebroadcast 2:30 a.m. on ESPN2:

Stuart Scott:
How did Stuart come up with "Boo-Ya"?

(My hotel, the wonderful new Sheraton, with internet at 50 cents a minute, was slow and disconnected twice.  I was charged for everything.  It took about 30 minutes!!  In my anger, I walked outside and found this place, a block away.  It's $1.50 an hour and ten times as fast--ed.)