LinkedIn has announced its new $53 million funding round in a bizarre way: by posting a video on YouTube in which its investors try to cast its $1 billion valuation as low, low, low — instead of breathtakingly high, which is what it is. What would have been vastly more entertaining: If LinkedIn marketer Surya Yalamanchili had taken some of his experience from The Apprentice and captured these VCs, reality-TV style, knifing each other in the back as they angle to get more shares in the company. Instead, we have a bunch of glorified bankers talking about what a great opportunity they've gotten — to buy roughly 5 percent of a startup with an eight-figure wad of cash.