Jim Cramer is many BloggingStocks readers' favorite personality: he's brash, he's loud, he's smart. Although his CNBC shows, Mad Money and Stop Trading! have insanely high ratings, I've always thought of him as perfect for radio; so few of his bells and whistles really need your attention visually. It's all about the (literal) bells and whistles, moos and catcalls with Cramer.

Yet, today the announcement: Cramer is set to end his radio show, RealMoney with Jim Cramer, to "focus on TheStreet.com Inc.'s video and multimedia initiatives." December 1, this Friday, will be the final nationally syndicated radio show. From now on, if you want Cramer? You'll have to get it on CNBC or purchase one of his sponsored videos.

This may be good news for TheStreet.com, Inc. (NASDAQ:TSCM), the company founded by Cramer and a single-minded Cramer-hyping machine. They're sure to get lots more revenue from those Cramer fanatics out there. The stock was up 40 cents, a whopping 4.78%, to $8.76 on the news. But it's bad news for radio, and especially CBS Corporation (NYSE:CBS), whose stock was down a few cents to $30.03 for the day.

Will we see a downfall in radio? Is our world so image-obsessed that we can't live without the visages of our favorite personalities? Or is this just a play of greed by Cramer and TheStreet.com -- they didn't like to share any of the profit with CBS and its radio affiliates? Is audio-only dead?