Merger mania hits cable stocks

• Shares of Comcast (CMCSA +2.6%) are on the move after CNBC reports that some significant shareholders are telling management to take a look at bidding for Time Warner Cable (TWC +7.3%).
• Though anti-trust issues can't be ignored, many media analysts think a CMCSA-TWC marriage makes more sense than TWC-Charter (NASDAQ:CHTR) coupling.
• Don't forget about Cablevision (NYSE:CVC): Shares are up 6.4% as investors bet it might make it to the altar as well.