Comcast, Microsoft to Deploy Video Recorder Set-Tops  REDMOND, Washington (Reuters) - Microsoft Corp. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=MSFT.O qtype=sym infotype=info qcat=news"&gt;MSFT.O&lt;/A&gt;  and cable television provider Comcast Corp. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=CMCSA.O qtype=sym infotype=info qcat=news"&gt;CMCSA.O&lt;/A&gt; said on  Monday they would begin deploying set-top boxes powered by  Microsoft software starting next week.