Time Warner, Comcast in Talks on Adelphia  NEW YORK (Reuters) - Comcast Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=CMCSA.O target=/stocks/quickinfo/fullquote"&gt;CMCSA.O&lt;/A&gt; and Time  Warner Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=TWX.N target=/stocks/quickinfo/fullquote"&gt;TWX.N&lt;/A&gt; on Monday said they are in talks on a  possible joint offer to acquire bankrupt cable company Adelphia  Communications Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=ADELQ.PK target=/stocks/quickinfo/fullquote"&gt;ADELQ.PK&lt;/A&gt;.