Partial Sentences

Hi,

I've created an app for a customer that controls various things in their 
center with speech.
So far everything is working great.  I've used 
SpeechRecognizer.SpeechRecognized
with predefined Grammars like "COMPUTER TURN ON TV1" and
"COMPUTER
MUTE TV1".  That works like a champ.  Could someone point me in the right 
direction
to do a partial recognition and retrieve the remaining speech text?  I don't 
want to
create grammar lists for "COMPUTER CHANGE THE CHANNEL TO 24" for 2000
channels (between CATV and broadcast, it'd be a huge number).  So is there 
some
way to trap "COMPUTER CHANGE THE CHANNEL TO" but it give me the rest
to parse for the channel number?  Would this be the SpeechHypothesized 
event?

Thanks,

Steven