Scripps Raises Forecast for TV Ad Revenue  NEW YORK (Reuters) - Media company E.W. Scripps Co. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=SSP.N target=/stocks/quickinfo/fullquote"&gt;SSP.N&lt;/A&gt;  on Wednesday raised its forecast for broadcast television  advertising revenue in the current quarter, citing a  stronger-than-expected market for political commercials in  October.