Liberty Media Should Do a Buy Back, Marangi Says

April 3 (Bloomberg) -- Chris Marangi, portfolio manager at Gabelli & Co., talks about speculation that John Malone’s Liberty Media Corp. will increase its stake in Sirius XM Radio Inc. to take control and spin off the satellite broadcaster. Marangi speaks with Erik Schatzker on Bloomberg Television's "InsideTrack." (Source: Bloomberg)