FCC chairman speaks at cable show: When asked about Dish Network’s ad-skipping Hopper DVR Tuesday, Federal Communications Chairman Julius Genachowski told CNBC that companies should be able to experiment with different business models. Dish’s new technology, which allows viewers to skip right over advertisements, has caused a stir in the cable industry, sparking concern that it will hurt advertising revenue.

Genachowski also said Tuesday that he supports broadband data caps, because “usage-based pricing could be healthy and beneficial” for broadband and high-tech industries,” The Washington Post reported. “Business model innovation is very important,” Genachowski said. “There was a point of view a couple years ago that there was only one permissible pricing model for broadband. I didn’t agree.”

Google-Motorola deal closes: Google has officially acquired Motorola Mobility, the company announced in a blog post Tuesday, and appointed one of its own as chief executive. On the company’s blog, Google CEO Larry Page said that Dennis Woodside will take over as Motorola CEO for Sanjay Jha.

Woodside was previously the president of the Americas region for Google.

Startup Act 2.0: Sens. Mark Warner (D-Va.), Jerry Moran (R-Kan.), Chris Coons (D-Del.) and Marco Rubio (R-Fla.) are pushing forward with a bill that would grant special visas to make it easier for foreign students to say in the United States. Under the proposal, those with math, science or engineering post-graduate degrees from an American college would get a green card to say in the United States after their studies are done. It would also grant legal immigrants an option for an entrepreneur’s visa, the senators wrote in an op-ed in Politico.

The move was hailed by the Consumer Electronics Association, whose senior vice president of government affairs, Micheal Petricone, said it “clears away a variety of anachronistic regulations that have made it difficult for small businesses to expand and thrive.”

Political file order challenged by NAB: The National Association of Broadcasters has filed a petition with the U.S. Federal Court of Appeals for the District of Columbia asking for a review of the FCC’s order requiring broadcasters to publicize political advertising-related information online. This includes the advertising rates stations charge candidates and other advertisers.

In the petition, the NAB asks that the court “hold unlawful, vacate and set aside” the order.

Facebook slides for 3rd straight day: Facebook continues to slide in the market, dipping as low as $30.98 per share Tuesday, as the company faces questions about the viability of its business model.

As shares fell, Reuters reported that the lead consumer Internet analyst for Morgan Stanley — the company’s lead underwriter for the deal — had cut his revenue forecasts for the social network. The forecast was changed after Facebook filed a revision to its S-1, citing concern about the way a shift to mobile users will affect its revenue.

Unnamed “sources familiar with the situation” told Reuters that other underwriters also revised their estimates after the filing. Morgan Stanley declined to comment on the matter.