NBC News’ “Dateline,” and the social discovery engine, Tunerfish, have partnered to offer social media during Dateline broadcasts.

Tunerfish is a Comcast-owned social TV service that was developed by employees of Plaxo, the address book/social networking service that Comcast acquired in 2008.

“Dateline” viewers can log on to Tunerfish.com and share via Facebook and/or Twitter that they are watching Dateline NBC. They can join the conversation about the show and participate in related online activities.

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Altice USA is moving UPtv and Aspire TV from its Residential Optimum Select, Economy, Value, and

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