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What: TiVo (Nasdaq: TIVO) popped 51% in intraday trading today after a court ruling in the company's favor.

So what: TiVo has been in a legal battle with satellite broadcaster Dish Network (Nasdaq: DISH) for more than six years over alleged DVR patent infringements. Today a U.S. Court of Appeals for the Federal Circuit upheld a lower court finding of contempt and award of sanctions against Dish's parent, EchoStar Communications (Nasdaq: SATS).

Now what: TiVo could win a damages award and is in a much better position to negotiate a licensing agreement with Dish. The next step is a ruling that could force Dish to shut down within seven days millions of DVRs found to have infringed upon TiVo's patents. Dish noted the shut down order only applies to an older generation of DVRs, which it is working to upgrade as quickly as possible, and said it intends to ask the U.S. Supreme Court to review the latest Court decision.

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Fool contributor Cindy Johnson does not own shares of any company named above. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.