(CNET) -- Google TV has the network television industry's attention.
Certain television shows on the Web sites of broadcast networks CBS and ABC are currently being blocked when Google TV users try to access those sites.
The Wall Street Journal also reported that NBC confirmed it was blocking streams to Google TV users, although CNET was able to view shows on NBC.com using Google TV. (CBS.com is published by CBS Interactive, which also publishes CNET.)
The decision to block the programs only seems to affect full-length episodes available on the Web sites of those companies, and it began in earnest this week, according to a source familiar with the situation.
It does not affect the viewing of those shows through the broadcast TV part of Google TV, just the streaming of those shows to Google TV.
Google declined to comment on the matter beyond a prepared statement.
"We're in the early phases of Google TV and already have strong partnerships with Best Buy, Logitech, and Sony, among others. We are excited about the opportunities our new platform creates for both established media companies like Turner and HBO, and tens of thousands of content creators large and small.
Google TV enables access to all the Web content you already get today on your phone and PC, but it is ultimately the content owner's choice to restrict their fans from accessing their content on the platform."
Turner Broadcasting owns CNN and is making some content from its cable networks, including CNN, TBS, TNT, Cartoon Network and Adult Swim, available to Google TV users.
Google TV is one of the more high-profile attempts in recent history by the tech industry to marry the PC-based Internet and the traditional television world.
Logitech and Sony released devices running the software earlier this month, which allows users to watch regular old broadcast television while pulling up a series of Internet-based applications and Web sites.
The idea is to give people something they're familiar with--regular television--while introducing them to something new, video over the Internet.
Several companies, such as TBS, have agreed to optimize their streaming-video Web sites for Google TV while others, such as NBC Universal, agreed to build applications for the software. NBC Universal's CNBC division actually built one of the default applications that ships with the software.
However, the major networks appear skeptical. The WSJ reported that some networks, such as ABC, had expressed concern that Google wasn't blocking access to search results that contain sites with pirated versions of their shows.
Also, Hulu, a Web video joint venture owned by Disney (ABC), NBC, and News Corp. (Fox) is still blocking access from Google TV devices. Google and Hulu are said to be in talks for access to the Hulu Plus service, but clearly no deal has been reached.
© 2010 CBS Interactive Inc. All rights reserved. CNET, CNET.com and the CNET logo are registered trademarks of CBS Interactive Inc. Used by permission.