Ever since AT&T Inc. agreed to buy Time Warner Inc for $85.4 billion, rumor mills have been churning out various M&A scenarios. One such speculation making the rounds is Comcast Corporation could buy CBS Corporation as part of its diversification strategy.But, Martin Pyykkonen, an independent analyst and 20-year market veteran, told Benzinga that the rumored deal is unlikely to happen, andCBS may be more interested in a merger with Viacom, Inc. .Pyykkonnen, a former sell-side analyst at Rosenblatt Securities, said, “CMCSA wanting CBS would actually be similar to their move to acquire NBCU (broadcast network, cable CHs, film studio).” Read more