Why Do the Network TV Upfronts Matter?

May 13 (Bloomberg) -- Brian Weiser, analyst at Pivotal Research Group, discusses this week's network TV upfronts for advertisers and what is most important to watch for at the events. He speaks on Bloomberg Television's "Bloomberg Surveillance."
Mila Kunis Helps Miner Become Top Emerald Producer
36:30 - Gemfields CEO Ian Harebottle discusses the gemstone business with Bloomberg's Pimm Fox on "Taking Stock." (Source: Bloomberg)
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