Get ready for the 3DTV hype to go into overdrive amid word that Discovery Communications Inc. (Nasdaq: DISCA, DISCB, DISCK), Sony Corp. (NYSE: SNE) and IMAX may soon flip the switch on their 3-D channel. That leads today's roundup of news making cable waves.

After scoring a DirecTV Group Inc. (NYSE: DTV) carriage deal, Sony, Discovery and IMAX reportedly will launch its new new 24-hour 3-D channel, 3net, this Sunday. (See Discovery Prez: New 3D Net Will Need 6MHz .)

Time Warner Cable Inc. (NYSE: TWC) launched its "Whole House DVR" to East Coast subs, giving it a product that can compete with Verizon Communications Inc. (NYSE: VZ)'s multi-room product for FiOS TV. (See TWC Takes 'SignatureHome' Service Nationwide.)

John Malone's Liberty Global Inc. (Nasdaq: LBTY) could be on the prowl for more international cable acquisitions, possibly eyeing Germany's Kabel BW GmbH & Co. , Dutch MSO Ziggo B.V. , and Belgium's Numericable-SFR . (See Liberty Global Eyeing German Expansion? )

Netflix Inc. (Nasdaq: NFLX) says it's looking for a more efficient way to connect to over-the-top devices, reporting that one unnamed device (some speculate that Apple TV is the culprit) accounts for 50 percent of calls to its API while delivering "significantly less streaming traffic" than other devices. (See Apple TV: A 'Hobby' No More? )

Meanwhile, after reading some new code, some technology geeks think Apple TV will soon support online gaming.

Major League Baseball won't hike the fees this season for its hot MLB.TV streaming video package, which goes on sale today.

Rovi Corp. is making it easier for Android phone owners to stream video, photos and music from their phones on cable set-tops and other devices connected to home networks. (See Rovi Flips Switch on TV Widgets.)

Twitter Inc. is holding "low-level sale discussions" with Facebook and Google (Nasdaq: GOOG), and may be valued as high as $10 billion, or roughly the same market cap as Cablevision Systems Corp. (NYSE: CVC).

— Steve Donohue, Special to Light Reading Cable